Quadrajet Problem Solving > Diagnose a Quadrajet carburetor problem

Need some help

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vernsters:
I need to get Cliffs book from the sounds of it, which I will do later today. I'm saving up for a quality A/F wideband but have to do my best with the simpler tests. To answer your questions:
I can kill it by bottoming out the mixture screws
The idle speed adjustment screw is only in 3/4 of a turn after touching to get 600 rpm
No fuel coming out of boosters at idle
Pinching PCV line causes engine to drop 200ish RPM
Cupping air horn doesn't do beans
Pulling plug off of other full manifold vac causes 50-100 rpm climb
At 15* she sounds crappy. At idle I can go to around 30* before she starts bucking.

Cliff Ruggles:
Our book would be a good idea.  We also sell drive in airbleeds, down channel restrictions, and idle tubes, plus every other part you could possibly want to completely/correctly rebuild/recalibrate your Buick carb exactly for what you are doing.....Cliff

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