09-23-2003, 05:02 PM
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CC Member
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Join Date: Jul 2003
Posts: 38
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Not Ranked
Pulsating idle help
Hello, and thanks to all who respond, my 428 SCJ has this pusating idle, the air adustments on the 735cfm are responsive when I turn them in the idle roughens then back a little an it smooths right out but still has that pulsating, the timing mark also hunts a little with the pulse, what would be the most probable cause- valve adjustment-worn distributer shaft? Could the manifold be leaking vac. and whats the best way to check, it pulls about 14Hg at idle and it also hunts a little with the pulsing idle. The cam is a crower nothing ratical 530in 531ex 110* overlap. I can enter more specs but I think I'm missing something simple and hopeing for a good tip. Thanks alot.
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