General Category > Quadrajet Carb Talk and Tips
Idle Air Bypass
ChevyZ06:
I am working on a 1969 Q-jet on a 454. I am trying to increase the air around the throttle plate and keep the correct angle. I have located the ports in the base plate and the body but I am not sure exactly where they are restricted in the top. Does any have a picture of the IAB restrictions? Thanks
77cruiser:
How big are the ports in the base? That's where the restriction is.
ChevyZ06:
I will have to check. From memory I think .080
ChevyZ06:
Guys please take a look at this video and tell me if you think that this can be caused by anything other than what I think it is. Thank you
https://www.youtube.com/watch?v=GYZPl4_2_z0
Cliff Ruggles:
What is the carburetor number?
Why do you think it needs more idle bypass air?
Nozzle drip at idle?
Control with the idle mixture screws?
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