[QUOTE=tc]For 12.7 compression ratio on your 428 you will have only 75 cc's in your heads,gasket,valve reliefs in the pistons. Is this your amount of cc's when you add up these items?
Yes 75cc´s
Are the heads aluminum or cast iron?
Of aluminium with combustion chambers of 72 cc
What is your goal for this engine. Race only with race gas, street with pump gas? Some of both? Both
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