Quadrajet Problem Solving > Dialing in your rebuilt Quadrajet carburetor

17058266 1978 Trans Am 400 W-72 Automatic

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steve s.:
Looking to find out where my initial air/fuel mixture screws should be set at for this carb.  Thanks!

Steve

Cliff Ruggles:
The idle mixture screws are set for best idle quality at the leanest settings.  This should happen around 2.5-3.5 turns out from seated with that carb number on a correctly tuned and good running stock engine.....Cliff

steve s.:
Thanks Cliff.  I will be contacting you in the very near future for a rebuild.

Steve

Cliff Ruggles:
Sounds great...

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