Power Valve Issue? - Club Cobra

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#12 (permalink)

06-04-2010, 07:43 PM

elmariachi elmariachi is offline

CC Member

Join Date: Jul 2008

Location: Driftwood, TX

Cobra Make, Engine: Contemporary Cobra, 427 side oiler

Posts: 1,850

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It all starts with getting the right power valves in place, based on vacuum readings and nothing else. As others have mentioned, the dual PV/square jetting setup is not going to be suitable for street diving. Buy a Holley PV plug and rejet to 77P 85S and see what happens. How do the spark plugs look?

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