06-19-2010, 10:22 AM
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CC Member
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Join Date: Jul 2008
Location: Driftwood,
TX
Cobra Make, Engine: Contemporary Cobra, 427 side oiler
Posts: 1,850
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Not Ranked
What Causes a High RPM Holley Cough?
I have all the kinks worked out of this Holley 3255-1 Le Mans except for one issue. If I really lean on it moving up through the gears, I sometimes get a single hard cough/belch/backfire, generally at the top of 3rd or 4th gear and above 4K RPMS. And the pedal is all the way to the floor when it happens so the butterflies would be wide open. It only happens once during the acceleration curve and it is very brief, not like a stall or electrical loss.
Thoughts on what might be causing this??
Jim
Last edited by elmariachi; 06-19-2010 at 10:25 AM..
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