Thread: Improve gas mileage on a 427 so ?
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Old 02-26-2020, 08:42 AM
olddog olddog is offline
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Join Date: May 2006
Location: St. Louisville, Oh
Cobra Make, Engine: A&C 67 427 cobra SB
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Patrickt - are you running vacuum advance? If so, ported or manifold?

Tuned to perfection would indicate yes you are, but......
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