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Fast-86-S10 -> chev head #3884520 (2/27/2005 7:22:17 AM)
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I just bought a set of 65 327 corvette heads #3884520 they have a 60cc chamber but only a 1.74 intake valve??? I'm wondering would it be worth it performance wise if I machined them out to 1.94 or 2.02 and ported them would I get much better performace???
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