carb bogging under accel - need help fast!
05-22-2009, 08:52 PM
#1
Member
Thread Starter
Join Date: Jan 2006
Location: Bartlett IL
Posts: 416
Likes: 0
Received 0 Likes
on
0 Posts
Car: 1989 Formula 350
Engine: 350 fuel injected
Transmission: 700R4
Axle/Gears: 9 bolt w/370 gears
carb bogging under accel - need help fast!
I have a 1985 Camaro that originally had fuel injection & now has a carb. Here is the comb info:
350 out of 1989 Formula
stock heads / ZZ4 GM cam / Headman 1 5/8 headers / Edlebrock performer RPM intake / Edelbrock 1406 carb
car has electric fuel pump with return regulator. runs fine at idle/part throttle but bogs under heavy acceleration. I messed with timing & fuel pressure - no luck. I've swapped distributers & carbs - no luck. Need help fast, I'm driving it to Thirdgen fest tomorrow. The one thing I'm not sure of is the tank vent?? there is no canister in the car, but it has the round thing from the top of the can. It has 2 vac ports, one says vac & the other says cansiter. how is this supposed to be hooked up to this setup?? I've tried hooking up a vac line to the vac port but it does not change anything. Please Help.
350 out of 1989 Formula
stock heads / ZZ4 GM cam / Headman 1 5/8 headers / Edlebrock performer RPM intake / Edelbrock 1406 carb
car has electric fuel pump with return regulator. runs fine at idle/part throttle but bogs under heavy acceleration. I messed with timing & fuel pressure - no luck. I've swapped distributers & carbs - no luck. Need help fast, I'm driving it to Thirdgen fest tomorrow. The one thing I'm not sure of is the tank vent?? there is no canister in the car, but it has the round thing from the top of the can. It has 2 vac ports, one says vac & the other says cansiter. how is this supposed to be hooked up to this setup?? I've tried hooking up a vac line to the vac port but it does not change anything. Please Help.
05-23-2009, 10:38 AM
#2
Member
iTrader: (2)
Join Date: Mar 2003
Location: Heart of Dixie
Posts: 465
Received 0 Likes
on
0 Posts
Car: 1987 Camaro Sport Coupe
Engine: 355
Transmission: 700R4
Axle/Gears: 7.5 inch 342
Re: carb bogging under accel - need help fast!
Sounds like a bad accelerator pump in the carb.
06-16-2009, 12:51 PM
#4
Senior Member
Join Date: Apr 2009
Location: montreal-canada
Posts: 554
Likes: 0
Received 0 Likes
on
0 Posts
Car: 1985 camaro Z/28
Engine: 305 V/8 4bbl carb
Transmission: T5 WC
Axle/Gears: 3-23 posi with 4 wheel discs
Re: carb bogging under accel - need help fast!
I have a 1985 Camaro that originally had fuel injection & now has a carb. Here is the comb info:
350 out of 1989 Formula
stock heads / ZZ4 GM cam / Headman 1 5/8 headers / Edlebrock performer RPM intake / Edelbrock 1406 carb
car has electric fuel pump with return regulator. runs fine at idle/part throttle but bogs under heavy acceleration. I messed with timing & fuel pressure - no luck. I've swapped distributers & carbs - no luck. Need help fast, I'm driving it to Thirdgen fest tomorrow. The one thing I'm not sure of is the tank vent?? there is no canister in the car, but it has the round thing from the top of the can. It has 2 vac ports, one says vac & the other says cansiter. how is this supposed to be hooked up to this setup?? I've tried hooking up a vac line to the vac port but it does not change anything. Please Help.
350 out of 1989 Formula
stock heads / ZZ4 GM cam / Headman 1 5/8 headers / Edlebrock performer RPM intake / Edelbrock 1406 carb
car has electric fuel pump with return regulator. runs fine at idle/part throttle but bogs under heavy acceleration. I messed with timing & fuel pressure - no luck. I've swapped distributers & carbs - no luck. Need help fast, I'm driving it to Thirdgen fest tomorrow. The one thing I'm not sure of is the tank vent?? there is no canister in the car, but it has the round thing from the top of the can. It has 2 vac ports, one says vac & the other says cansiter. how is this supposed to be hooked up to this setup?? I've tried hooking up a vac line to the vac port but it does not change anything. Please Help.
i had the same problem and i installed an inline fuel pressure regulator and it runs fine now...hope this helps.
Thread
Thread Starter
Forum
Replies
Last Post
toronto formula
Engine/Drivetrain/Suspension Parts for Sale
3
09-10-2015 07:31 AM
1985, 1987, 350, acceleration, acceration, bog, bogging, bogs, camaro, carb, carbaretor, carburator, carburetor, heavy, throttle
