Carburetors Carb discussion and questions. Upgrading your Third Gen's carburetor, swapping TBI to carburetor, or TPI to carburetor? Need LG4 or H.O. info? Post it here.

I have had it! help.

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Old Feb 9, 2003 | 11:25 PM
  #1  
icebird_1981's Avatar
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From: Toronto
I have had it! help.

i cant slam my gas to the floor by the time i hit 3/4 down it bogs bad. if i hit it hard or just gently push the peddle down it bogs always. my carb was rebuilt 1 year ago. is my carb off? any ideas where i should start.
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Old Feb 9, 2003 | 11:35 PM
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curt86iroc's Avatar
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From: Hillsborough, NJ
Car: 1990 IROC
Engine: L98
Transmission: TH700-R4
try adjusting the AV valve on your carb. heres the tech article that shows you how to do it....

https://www.thirdgen.org/newdesign/tech/quadrajet.shtml
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Old Feb 10, 2003 | 06:20 PM
  #3  
five7kid's Avatar
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From: Littleton, CO USA
Car: 82 Berlinetta/57 Bel Air
Engine: L92/LQ4 (both w/4" stroke)
Transmission: 4L80E/4L80E
Axle/Gears: 12B-3.73/9"-3.89
The pull-off is also critical to this function.

Rods and hanger can also improve secondary response, especially the gradual application. Stock, I couldn't do a partial secondary opening (with the throttle), as it would dog out and actually slow down. With the DR rods & B hanger, I can give it just a little secondary and it will transition smoothly and give that just a little more power.
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Old Feb 11, 2003 | 10:01 PM
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From: Toronto
thanks for the help i am goin to try it 2morrow, let u no what happens
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Old Feb 13, 2003 | 08:40 PM
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From: McMinnville, TN
"The setscrew is on the underside of the lip of the airhorn"???? Ok, I know that I have asked this before, a while back, but I could not adjust my carb, because I could not find that screw. Is it on the passenger side as well, and where exactly is the airhorn and what does it look like?
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Old Feb 13, 2003 | 09:11 PM
  #6  
curt86iroc's Avatar
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From: Hillsborough, NJ
Car: 1990 IROC
Engine: L98
Transmission: TH700-R4
ok, see the choke linkage on the pass side right where it connects to the AV flap? theres the adjustment screw with the spring right there. directly under it is the set screw. its a really small allen head.....
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Old Feb 15, 2003 | 11:16 AM
  #7  
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From: McMinnville, TN
Thank you! I will have to go out and look after it quits storming over here...
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