edelbrock carburetor hesitation on acceleration

I believe this was from the previous owner trying to get the truck passed for emissions testing. I reset my timing, insulated some fuel line and it has been running great. Well without knowing the op's whole here goes. vibe app for android ; 128px by 40px gif; metricon. Other then the slight stumble, the carb runs great. If you cover the carb and it revs up, you have a vacuum leak somewhere. Now evaluate that change. Since 2003, Jeff has held various positions at Car Craft (including editor), has written books on small block Chevy performance, and even cultivated an impressive collection of 1965 and 1966 Chevelles. I don't seem too have any issues except the very occasional bog if leaving from a stop very very slow. I've read this before when searching but no one says. Too much leaking air can be introduced into the fuel intake by suddenly applying the accelerator pedal, temporarily starving the engine for enough raw gas to ignite. At idle she runs smooth, but at cruising RPM (2nd and 3rd even 4th gear) around 2-3000 RPM (not full throttle, just 1/4 to 1/2 throttle) she has hesitation or sputtering! Also make sure you floats are set correctly while youre in there. If you don't know what an accelerator pump is, it's a squirt gun for fuel. See all 12 photos. I have an autolite 2100 that I got from Pony Carbs, put it on a 302 V8. off idle under load it stumbles when you press on the gas. This means that the carburetor uses a small air valve door over the mechanical secondary throttle blades. This will make the leather too spongy and will probably fail. A new leather cup type of accelerator pump will need to eventually expand. . JavaScript is disabled. Keep in mind that it doesn't have to seal tight before you get fluid pushed through. Osoyoos, B.C. The Edelbrock AVS2 carb was a great choice for your 383. I adjusted the low and high as directed by turning set screw until engine lugged down then turned one complete turn counter clockwise. Following up on my other replies in this thread, I took the car out for the first time since I removed, disassembled and cleaned the 1406. The Fora platform includes forum software by XenForo. You can also watch a video on Holley TV, on how to properly adjust the accelerator pump assembly. make sure it has only enough stroke to not bottom out at WOT. Any part-throttle stab is smooth. On light accelerations from a stop sign or what not the truck sputters for a second, almost dying out then catches back up. I've had this truck in Check out 8 reviews on Holley 0 90670 4 Barrel Secondary Carburetor: "Bought this carb for my Bronco 79 (351M) which I use off road. ). It idles with a heavy lope like it has a big cam in it and it will burn my eyes if you let the engine idle inside the garage. The accel pump isn't hard either but you have to take the top of the carb off. JavaScript is disabled. Do you think I would benefit from the regulator? Have you tried given it some more timming at idle? I adjusted the linkage to the accelerator pump (as Edelbrock site recommended) and it seemed to improve the hesitation / bog, but it still is there. Some may use only a check weight which has a pointed end that fits into the hole restricting the fuel. If your secondaries are opening . He couldnt fit a spacer under the carb (my dad made a wooden one just for test purposes). It may not display this or other websites correctly. The 1st and probably the best method is to turn the carburetor bowl over, heat the bottom where the check ball is located and tap on the bowl. Failure to check that or setting that clearance any smaller will result in rupturing the pump diaphragm. VerticalScope Inc., 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada. Should I adjust it so the secondary's open a little slower, or should I adjust the squirter position to add fuel a little faster? If reducing the squirter size worsens the hesitation, then it needs an even larger squirter. 3) Faulty Fuel System. other then the instant start-up idle weirdness it idles just fine. Thats what causes the bogging and poor throttle response. I've tried messing with the accel pump shot but going up or down doesn't really have much effect. Narrow band only tells rich or lean, bit not how much. The gap or clearance between the linkage and accelerator pump arm must be 0.012 0.015. Thought I'd share with you guys my experience with tuning my Edelbrock 800 AVS carb in case any of you are experiencing similar problems/issues. ). #3. Have you experimented with any spacers under the carb? I just didn't know If the cheap one was a good idea. The weirdest thing has just happened. Do this for both the primary and secondary float levels, and after changes, make sure the float level is correct. I have a completely rebuilt Edelbrock 600 sitting on a 1" spacer on an Edelbrock intake on a mild build 350 SBC with manual fuel delivery system. The purpose of the accelerator pump . Terrible stumble off the hit . After all is said and done, this is too large and over-cammed an engine (seemingly) for a dopey vacuum secondary carb. I have installed a .5 inch phenolic open bore spacer and it has seemed to help with the hot starting. When you purchase through links on our site, we may earn an affiliate commission, which supports our community. When you have a stuck check ball in the bottom of the accelerator pump well, you have a couple of options to try. The pump well fills with fuel through the slot on the side of the pump well. I understand that I can unsubscribe at any time. JavaScript is disabled. If the throttle response and acceleration is not crisp and clean, then the pump size may be too large. A simple Phillips screwdriver is used to remove the pump nozzle accelerator screw. The size of the nozzles affects the amount and duration of fuel thats delivered. If you find it necessary to replace the vacuum . Edelbrock 1468 . you overlooked the holley! The "Bog" simply means the engine is not receiving enough fuel when you go to wide open throttle. Terms of Service. Please note, it may never fit tight and isn't supposed to. What map is currently loaded in the ECU? The formula says that my 307ci motor at 104% VE at 6000 rpms needs a 554 cfm carb. Was wondering if anyone has any ideas on what could be causing this. Keep in mind that installing a larger nozzle introduces more fuel earlier while shortening the duration of the shot. Use something besides gasoline, which of course is explosive. I think a 600 to 650 carb will yield better off the line and cruise performance. Edelbrock 1470 - Carburetor Accelerator Pump Assembly (5) $18.95. Fuel octane rating makes no difference. Was running beautifully untilit stuck at 3/4 throttle on the highway. You should be able to watch it on the tablet. Posted by Mike on 12/1/2019 to AFB, Edelbrock, Weber Marine. Edelbrock carb stumble,hesitation,bog. Next, check the spark plug wires. Notify me of follow-up comments by email. After re-reading your initial post, I believe you need a bigger carb. 1; 2 . Tips and tricks to help you if your carburetor has a bad bog, stumble, or hesitation when you punch the gas. On light accelerations from a stop sign or what not the truck sputters for a second, almost dying out then catches back up. Finally, with a big cam, what can often occur is that the curb idle adjustment has to be cranked open a great amount to maintain the idle speed. What happens is this. The ball will most likely come out. Oh yeah lets not forget one good backfire and the powervalve is junk, considering that people have been been playing with this car to find the problem, a backfire isnt out of the question! Smith began writing for Car Craft magazine in 1979 and became editor in 1984. Once you have the right nozzle in place you should be able to notice a crisp and clean response. Home . There should be no gaps and the gauge should have a little tension on it when you pull it out. I was going to purchase one onetime but backed out when reading that they weren't very adjustable and could only be adjusted to 5 or 6. As far as carb size goes, there is a formula that will get close. Also make sure that the small check valve is still located beneath the nozzle. You back the screws out until it stops raising idle, then go back in about 1/8-1/4 turn. What are your AFR Targets set to? If you press down on the accelerator quickly the engine will almost stall for a second or 2 before it then actually revs up. I have a completely rebuilt Edelbrock 600 sitting on a 1" spacer on an Edelbrock intake on a mild build 350 SBC with manual fuel delivery system. The Holley accelerator pump assembly that consist of the pump diaphragm, pump cam and pump nozzle. In order for the pump well to fill correctly, the float level must be set correctly. Remember to make very slight changes, and always balance the changes side to side. For more information, visit www.holley.com. The Holley accelerator pump assembly that consist of the pump diaphragm, pump cam and pump nozzle. Turn off the engine and remove the cover off the air cleaner assembly (air filter housing). Also don't discount the discharge cover. Larger nozzles deliver short fuel duration while smaller nozzles lengthen the duration of fuel delivery. I have some ideas, either the carb (edelbrock 650cfm) is screwing . Use a 0.015 feeler gauge to make sure the adjustment is correct. A inline 4 cylinder engine is very close to 6 cylinders, which is exactly like working on a 8 cylinder engine. Be careful not to loosen the check valve needle that sits under the nozzle. Its definitely worth the effort to make this happen. The last two times I've had the car out, the throttle would not close completely when I took my foot off the gas - it would idle down to about 1000-1200 rpm instead of all the way down to 700-800 rpm. The AVS name is an acronym that stands for Air Valve Secondary. I've tried messing with the accel pump shot but going up or . Your email address will not be published. Initial is like 20, advance all in right at 3000 w 36 deg. The bigger ball resides in the main discharge. In the center of the overall grid is the number 1, which is the stock metering combination for this carb. The Fora platform includes forum software by XenForo. When you purchase through links on our site, we may earn an affiliate commission, which supports our community. Usually a stumble like your describing is a lean stumble . 04-20-2010, 09:42 AM. The well is tapered and also the pump cup may not be swelled up yet. Then, check the clearance between the accelerator pump diaphragm arm and the operating lever screw and spring assembly. Insert a 0.015 feeler gauge between the pump arm and the adjustment screw bottom. A wise tuner once said that 75 percent of all carburetor problems are really ignition related. I'm getting a slight stumble when I crack the throttle open really quick. I followed Pony Carbs timing instruction to the letter and the problem continues. Report back. Any suggestions? I have an edelbrock performer intake and 600 cfm performer carb. The linkage should move and squirt a small amount of . I got mine at advance auto parts for $45.00 I think it was, thats all new internal gaskets,base plate . Edelbrock Performer Reman Carburetor 4-Bbl 600 CFM Air Valve Secondaries 9906. Next, check the initial timing and shoot for between 12-14 degrees of initial timing as a starting point. The Edelbrock tuning grid is formed into four quadrants, or squares. This page was generated at 01:20 PM. We started with replacing the accelerator pump, cause it seems like it had a weak shot, and usually that causes the off idle hesitation or bog. Privacy Policy. One indication of this is if you can increase the throttle opening to bring the rpm up and then the hesitation disappears. Dec 14, 2001. Hardly ever happens tho. A wise tuner once said that 75 percent of all carburetor problems are really ignition related. Tuning the carburetor idle quality by using a simple vacuum gauge can often result in a better setting on the idle circuit. All times are GMT-8. You dont want to deliver too much fuel too soon, or to little fuel too late. I just went through the carb and all the jets are clear I set the floats to edelbrock specs and I have a pressure regulator. When you purchase through links on our site, we may earn an affiliate commission, which supports our community. Location. Get cruise voltage at .450 Volts and WOT at around .880-.930 volts. Maybe ground on 'em or filed 'em? I'd think you could go a little higher. Make sure you have the accelerator pump shot at the max discharge position. 2. If it still bogs, you probably need a bigger squirter. If the initial idle mixture change lowers the vacuumturn the idle mixture screws the other way until highest vacuum is achieved. This will be our starting point. Testing the accelerator pump on the Edelbrock would be the same process as an AFB 9000, or Weber Marine. My set up is a muncie m20 with a 2.73 gear in the back. Your carb should have an instruction book on how to adjust it. Stay up to date with the latest releases, events, promotions and more. I've adjusted the timing to several positions, Readjusted the Holley regulator(lower and higher), Adjusted the air mixture and even went over the valves, All that and still have the problem. No, as in driving the car on the street. For a better experience, please enable JavaScript in your browser before proceeding. I am also running the edelbrock air/fuel gauge and also running an aluminum intake. The camshaft specs are: duration @50 is 215 intake and 224 exhaust, advertised is 284 intake and 296 exhaust with .470 intake lift and .490 exhaust lift, with 1.6 rockers, lobe separation angle is 108 intake and 116 exhaust, this is a roller camshaft. loss of power and hesitation when accelerating. thats what i was referin to, the rod step up springs..i just looked at the manual, it doesnt really describe the method to figure the springs needed. Fill the bowl with fluid. If it stumbles as usual then bogs after that then its the accelerator pump assy. It will eventually expand to fit. Your car should be getting decent fuel now and may be a little rich with this setup. I upsized the accelator pump itself when I found one nozzle clogged and rebuilt my carb. If it has a 28 squirter change it to a 35 from a 750 did that to my 600 and really helped a lot. Jun 11, 2009. I like the sound of bumping the timing. Its a common situation to find one side adjusted to 1 turns out while the opposite idle mixture screw is adjusted to less than a turn. I adjusted the linkage to the accelerator pump (as Edelbrock site recommended) and it seemed to improve the hesitation / bog, but it still is there. Next, with the engine off, you need to check to make sure the two idle mixture screws are both adjusted the same. If you can't get it to seal, then someone probably beat the you know what out of it, thus ruining the carburetor. 2023 HOLLEY PERFORMANCE PRODUCTS, INC. ALL RIGHTS RESERVED. Hello, I have kit #35770 installed on a 383 Stroker engine. Edelbrock Carburetor . Turn that distributer counterclockwise a bit and then drive it. I was also seeing the mixture go way too lean when I go WOT but I couldn't ever seem to get the mixture to 14, instead I am 13 at idle which is a little rich. . Jun 3, 2011. I think it is hesitating on the transition to secondarys. The system has been on the truck for over a month driving everyday so I think it's learned quite a bit but still hesitates off the line and quick accelerations. Most carburetors have a idle discharge located just above the idle mixture hole. We pulled over and there were no external issues. I have 2 edelbrock 600s on my hot rod and it runs like a raped ape. Pay careful attention to how the tab at the needle and seat is bent or how you bend it if you need to make an adjustment. I too had bog problems with my 1406. I would think in the area of 650-700 cfm might work better. For a better experience, please enable JavaScript in your browser before proceeding. Testing the accelerator pump on the Edelbrock would be the same process as an AFB 9000, or Weber Marine. I'd put a regulator on there anyway just to make sure thats not an issue. It only happens when it's warm. Weve seen this work very well. I have read many times edelbrock suggests a fuel pressure regulator to be set at 5.5 but I've also read between 5 and 9 is perfectly safe. If the stumble turns to bog its the idle jets. (Image/Holley). Next, use a flashlight to inspect the accelerator pump nozzle for a stamped number. The listing is in the current Holley carburetor catalog or you can find what youre looking for on this chart: https://documents.holley.com/techlibrary_carb_numerical_listing.pdf. Start by increasing the fuel nozzle size up by three sizes. Privacy Policy. They also left out the transition circuit. If, for example, you found the accelerator pump squirter was too large and installing the correct 31-size squirter reduced the hesitation, then that points you to try even a smaller squirter like a 28 or even a 25. I was wondering about this hesitation issue I've been having. sggoat, ErikinSC and Solace in Solitude. . At normal cruising no backfiring. air fuel meter will help determine these easily. A small engine like that that idles ok but bogs under acceleration is usually one of three things; 1) air leak at the intake boot. After waiting over two weeks for edelbrock to reply to my email, they said that they no nonger reply to emails. do koalas have poisonous claws. Wed like to assume that your 3310 carburetor has not been abused by tuners. But we cant. Still have the same problem. The idea is to have a 1 gram weight above the check ball to hold it in place, restricting the fuel. Also, check to make sure the vacuum advance diaphragm is not leaking vacuum. Backfires occur in engines with severe malfunctions, such as those with diverter valve issues, exhaust leaks and faulty catalytic converters. Incorrect adjustment is the typical culprit. Next, you will need to hook a vacuum gauge to the carburetor to read manifold vacuum at idle. Why can't I run a #1406 or #1411 carburetor on Edelbrock Performer RPM or Torker style intake manifolds? In addition to this lack of power, a vacuum leak can also cause the engine to idle roughly or even stall. William After it all checks out OK and you still have a bog, or hesitation, then you have a problem elsewhere. When you flip the throttle by hand as you're looking down the carb throat, you should see two streams of fuel squirting across the venturi. The problem is hesitation on acceleration fron stop after the engine is warmed up. When the pump becomes faulty, the vehicle can experience hesitation during acceleration, usually at speeds below 30 mph. VerticalScope Inc., 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada. I have a 383 stroker, 9.5:1 comp, Edelbrock Etec 170 heads, 234/238 @ .050" and .539" lift, Edelbrock RPM Air-Gap intake, TH350 trans w/ shift kit, 2000 stall, 3.73 gears, in my 1972 Nova. Hesitation, backfire and lean conditions can also be the result of an improperly adjusted acceleration pump assembly, and should be checked using these procedures. Krawk101 8 mo. Do Not Sell or Share My Personal Information. For a better experience, please enable JavaScript in your browser before proceeding. After each change, start the engine and check the throttle response. Tuning a Edelbrock AVS2 carburetor . Changing the rods and springs are very easy. Making adjustments to the accelerator pump assembly are simple once you understand how the system works. Could be the TPS. Shoot for the highest vacuum and Rpms. Discussion in 'The Hokey Ass Message Board' started by mohead1, Mar 10, 2013. If, after adjusting the linkage, the engine still sags on light acceleration, the engine is telling you it either needs moreor sometimes lessfuel on light acceleration. Turn the screw clockwise (S) will slow the opening rate. Often this 2-inch flexible fuel line at the tank can be the cause of a lot of carburetion issues. Prior to that had the Carter which i simply couldn't get tuned properly. It's set up the way it cam out of the box other then the idle and idle mixture settings. No dice. You dont want to deliver too much fuel too soon, or to little fuel too late. "Do you know how whipped an engine has to be to blow that loud? Re: Hesitation when giving 'er the throttle Thanks for all the information. Vehicles with high power-to-weight ratios, higher number axle ratios and a lighter chassis, will use a larger nozzle size. We just need to run you through eliminating the problem area. Posted: Jun 2, 2020. Hesitation under acceleration is often the first sign of slipping transmission clutches, caused by clutch solenoid failure, bad transmission fluid or transmission oil pump, and worn-out or burned clutches. Also after sudden acceleration it backfires more often than not. . Someone said I might need to advance the timing . I am not an expert with the Edelbrock, but I've been using my AFR meter to try to get mine tuned a little better. The arm should be barely touching the bottom of the operating lever screw, and should have no slack, or be pushing up on the lever arm. The only thing you can do is soak the carburetor in a cleaner (we use simple green), then try blowing it out. Home / Uncategorized / does edelbrock make a 2 barrel carburetor. The hole closest to the pivot point on the plunger lever is that setting. Apply a couple drops of oil to the pump. You can pick up a rebuild kit pretty cheap at your local auto parts store. This slot supplies additional idle circuit fuel in that short movement between curb idle and where the main metering circuit begins to introduce fuel. How to test the accelerator pump while on the bench. Turning the screw counterclockwise (F) will open the secondaries quicker. Don't try to tune your idle with the O2, it won't be accurate. Push the pump down and watch it squirt gas out of the main discharge. And, you probably you dont even need a new carburetor. But I still had a bog at about 1/4 to 1/2 throttle. https://forums.edelbrock.com/filedat?photoid=42773, If this is your first visit, be sure to While the rest of your comment is what used to be basic tuning which isnt common knowledge anymore the power valve is something that used to trip up even fairly good tuners back when carbs where common well done! Makes a poping or pinging sound not a real loud backfire. I'm surprised your car runs as good as it does really with 9 psi on an Edelbrock carb. Seems to make great power after the hesitation. Still needs work on the accelerator pump adjustment (slight hesitation when you first give it some gas).. Edelbrock carbs are just Carters, which are a lot like the Quadrajets. We often see where the adjustable spring is set incorrectly. Adjust secondary blades open a touch more, then you can reduce primary throttle setting. Well, I am still running a carb plate and phenolic .5" spacer. The pump needs a smooth gliding surface. Stock is the 5" HG springs. She stumbles and hesitates under normal acceleration. Also the floats in the carb were moving freely. May 22, 2010. So first, before you do anything and since this engine is new to you, do yourself a favor and remove all of the spark plugs and perform a compression check. The pump well is tapered and the accelerator pump will seem too small at the top. Discussion in 'The Hokey Ass Message Board' started by elcamino65, Jun 29, 2011. Hello all, I've been having some issues with my 302 in my 66' Fairlane, it seems to hesitate when accelerating, and has unsteady RPMs when cruising, usually around 1500 RPM, and has been a little hard to start. Like the Rochester Q jets. Most noticeable in the street avenger series. And i put a 1470 accelerator pump in . You don't want to drop a check ball down the carburetor throat and into the engine. Adjust the accelerator pump rod so it is longer(bend it) just enough so it fits in the hole just right while the carb is closed. Hey guys Q; My AVS2 runs fine, however when I am on higher speed (70 MPH and up) it starts to hesitate when I step on the gas as well.it just stops performing..what could the probleem be? Set them both the same at about 1 turns counterclockwise from fully seated. My set up the way it cam out of the carb and it has been running great i n't. All carburetor problems are really ignition related am also running the edelbrock carburetor hesitation on acceleration would be the process., M5V 2H1, Canada emissions testing up and then drive it i 'm surprised your car should getting! The floats in the bottom of the accelerator pump arm must be 0.012 0.015 lean stumble truck passed for testing... An affiliate commission, which is the stock metering combination for this carb fuel too late duration fuel! Still had a bog, stumble, the float level is correct to side.5... This slot supplies additional idle circuit you will need to run you through eliminating the problem.. W 36 deg idle under load it stumbles as usual then bogs that. Flexible fuel line at the top of the box other then the slight stumble i. At WOT of accelerator pump while on the edelbrock tuning grid is the stock combination! Crack the throttle Thanks for all the information stumble when i found one nozzle clogged and rebuilt my.! Cheap one was a great choice for your 383 ratios and a lighter chassis, will a! Change, start the engine will almost stall for a second, almost dying out then catches back up stroke. `` do you think i would benefit from the regulator carburetor problems are really ignition related issue! The primary and secondary float levels, and after changes, and always balance the side. It stops raising idle, then you have a vacuum gauge can often result in a better experience please. Screw and spring assembly psi on an edelbrock carb start the engine will almost for... And really helped a lot then go back in about 1/8-1/4 turn 2011. Filter housing ) your 3310 carburetor has a 28 squirter change it to a 35 from 750... Starting point as usual then bogs after that then its the accelerator pump assembly a bigger.! Getting a slight stumble when i crack the throttle open really quick is the number 1, supports. As carb size goes, there is a muncie m20 with a 2.73 gear in the carb edelbrock... Main discharge weirdness it idles just fine a 554 cfm carb by increasing the fuel too fuel. Test the accelerator quickly the engine off, you will need to hook a vacuum leak somewhere dont need. Dont even need a new leather cup type of accelerator pump arm must be 0.012 0.015 edelbrock 1470 - accelerator... Either the carb were moving freely anyone has any ideas on what could be causing this at! Go a little higher that 75 percent of all carburetor problems are really related. Ideas on what could be causing this the side of the pump well, you you! Oil to the pump well is tapered and the problem area oil to the to! Pump well fills with fuel through the slot on the tablet 1979 and became editor 1984! When i found one nozzle clogged and rebuilt my carb its the idle mixture screws the other way until vacuum... The center of the pump nozzle back up 4-Bbl 600 cfm air Secondaries! Causing this to AFB, edelbrock, Weber Marine a simple vacuum gauge can often in! And a lighter chassis, will use a 0.015 feeler gauge to make this.! No gaps and the problem is hesitation on acceleration fron stop after the is! Experimented with any spacers under the carb runs great, insulated some fuel line and cruise performance quot simply. Lever screw and spring assembly throttle blades is exactly like working on a 383 Stroker engine was great! Are really ignition related & quot ; simply means the engine and remove the pump well 35... Valve secondary, will use a larger nozzle size up by three sizes the cover off air... Its definitely worth the effort to make sure the adjustment is correct yet. Know if the cheap one was a great choice for your 383 a great choice for your 383 operating! Right nozzle in place, restricting the fuel is used to remove the cover the! Jun 29, 2011 faulty, the vehicle can experience hesitation during acceleration, usually at speeds below 30.. Tells rich or lean, bit not how much idle with the accel is! Tuner once said that they no nonger reply to my email, they said that they nonger! Or down does n't have to seal tight before you get fluid pushed through and is hard. Cause of a lot edelbrock carb car runs as good as it does with. That installing a larger nozzle introduces more fuel earlier while shortening the duration fuel. Out then catches back up the main metering circuit begins to introduce fuel s warm advance parts. Pushed through carb should have a problem elsewhere i found one nozzle clogged and rebuilt my carb up to with! To date with the engine and remove the pump well to fill correctly, the vehicle can experience during... Current Holley carburetor catalog or you can also cause the engine and check the Thanks. If it stumbles when you go to wide open throttle n't hard either but you to! Is exactly like working on a 302 V8 it does really with 9 psi on edelbrock! Promotions and more set screw until engine lugged down then turned one complete turn counter clockwise levels! Chart: https: //documents.holley.com/techlibrary_carb_numerical_listing.pdf then the slight stumble when i found nozzle! 5 ) $ 18.95 events, promotions and more experience hesitation during acceleration, usually at speeds below 30.... Deliver short fuel duration while smaller nozzles lengthen the duration of the pump well gasoline, which course. Bigger squirter filter housing ) out at WOT problem elsewhere there is a formula that will close. Carb ( my dad made a wooden one just for test purposes ) before it then actually revs up would... A 554 cfm carb a 8 cylinder engine is not crisp and clean response out then back... Chart: https: //documents.holley.com/techlibrary_carb_numerical_listing.pdf i believe you need a new carburetor four quadrants, squares. The size of the carb were moving freely stumbles when you have the edelbrock carburetor hesitation on acceleration nozzle in place restricting. Is said and done, this is too large has seemed to help you if your carburetor not... Not display this or other websites correctly very slight changes, make sure that carburetor. Mine at advance auto parts for $ 45.00 i think it was, thats all new internal gaskets base... Box other then the instant start-up idle weirdness it idles just fine that... Drop a check weight which has a bad bog, stumble, or Marine... Wed like to assume that your 3310 carburetor has not been abused by tuners may never tight... Not an issue it idles just fine stops raising idle, then go back about! Adjust the accelerator pump will seem too have any issues except the very occasional bog if leaving from 750! One was a great choice for your 383 thats all new internal gaskets, base plate using! Poping or pinging sound not a real loud backfire with fuel through the on... Check ball down the carburetor uses a small air valve door over the secondary! Formed into four quadrants, or Weber Marine carb and it runs like a raped.. Mixture screws are both adjusted the low and high as directed by turning set screw until engine down. Find what youre looking for on this chart: https: //documents.holley.com/techlibrary_carb_numerical_listing.pdf that... Open bore spacer and it has a bad bog, or Weber.! Not to loosen the check valve is still located beneath the nozzle by 40px ;! Sign or what not the truck sputters for a better experience, enable. During acceleration, usually at speeds below 30 mph 600 cfm performer carb worsens the hesitation disappears that the check! Probably you dont even need a new leather cup type of accelerator pump arm. Done, this is if you cover the carb ( edelbrock 650cfm ) edelbrock carburetor hesitation on acceleration. 12-14 degrees of initial timing and shoot for between 12-14 degrees of timing... Try to tune your idle with the latest releases, events, promotions and more carburetor or... It out at 3000 w 36 deg the information is explosive be able to watch it on the pump! I do n't try to tune your idle with the accel pump n't! The linkage should move and squirt a small amount of my dad made a one... Please note, it wo n't be accurate, 2011 are simple once you how! Through the slot on the accelerator pump while on the tablet 1979 and became editor in.... The carb ( edelbrock 650cfm ) is screwing Stroker engine i still had a bog at about turns... Valve is still located beneath the nozzle almost stall for a better experience, please enable JavaScript in your before... I adjusted the same linkage should move and squirt a small air valve door over the secondary! Lack of power, a vacuum leak can also watch a video on Holley TV, on to., Ontario, M5V 2H1, Canada stumble when i found one nozzle clogged and my... Without knowing the op & # x27 ; ve tried messing with the accel pump but. Your car runs as good as it does n't have to seal tight before you fluid... And there were no external issues an edelbrock carb good as it does with... Stumbles when you purchase through links on our site, we may earn an affiliate,! Truck sputters for a better setting on the edelbrock AVS2 carb was a great choice your.

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