Hiya, I have a 1971 pickup with a 1972 402 big-block. It has 1967 closed chamber oval port heads (9.3:1 compression). It has stock cast pistons, a Crane [...] intake, [...] exhaust, .529 intake lift, .525 exhaust lift cam, installed with marks straight up. Mar...

FIX posted 10/16/2003

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