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Old 03-27-2022, 05:26 PM
cobragene cobragene is offline
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Join Date: Dec 2020
Location: Baltimore, MD
Cobra Make, Engine: Everett Morrison FE 428
Posts: 61
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I have a 428 bored .030 with performer heads 6006 from late 1990s, when the engine was completed comp ratio came in at 9.9-1 later I had an issue and the heads cut .004 . The head Literature says chambers are 72CC and each .005 cut reduces chamber volume by 1CC. Can anyone (Brent) tell me what comp. Would now be? Thank you
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