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Old 05-31-2014, 09:48 PM   #20
68gmsee
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Location: Centrally located between Houston, Austin and Waco. BCS area.
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Re: motor turns over a couple more times after shut off?

Quote:
Originally Posted by Mattys1970C-10 View Post
which one is the idle screw?
Depends on the carb you have. A pic would help.

The idle speed screw is the one that increases or decreases the idle speed on the engine. Idle air screws are the ones usually at the base front of carb and are used to adjust the idle air mixture for maximum vacuum.
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