Hot Rod Forum : Hotrodders Bulletin Board - View Single Post - Holly mixture adjusting screw
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Old 02-03-2004, 05:02 PM
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lluciano77 lluciano77 is offline
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It is a fuel leak or something stuck in one of the passages. Take it apart and clean it well. If it needs new gaskets, get them. Clean out the air bleeds and idle feed restrictions. The problem is in the idle circuit.

Whenever a mixture screw has no effect you can count on it being one of the problems mentioned above. Holleys are extremely sensitive to dirt.
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