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Old 07-18-2021, 10:58 AM   #6
Wrenchbender Ret
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Join Date: Oct 2005
Location: Overland Park, Ks.
Posts: 5,190
Re: Quadrajet idle issues.

You are getting foreign material in the carb. At first it was holding the needle open. Now it has aqumulated enough to clog up some passages. You need a good filter to catch it before it gets to the carb. You should pull the tank & clean it or get a new tank.
George
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