05-11-2007, 07:22 PM
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Backdraft Racing Dealer
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Join Date: Dec 2004
Location: North Haven,
CT
Cobra Make, Engine: Backdraft Racing
Posts: 5,124
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Not Ranked
Sure it's not an exhaust leak? Also saw this once with a set of ignition wires that had a cut in them and were arcing to the valve cover.
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