ms4, prc ls6 stage 2.5, fast 90/90 ?
01-28-2007, 04:23 PM
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ms4, prc ls6 stage 2.5, fast 90/90 ? I will be flycutting for my new combo. i'm leaning towards getting the heads milled to 59cc and using .040 cometics. should anything be done to the fast intake since the heads will be milled, or will it fit ok? do i need to flycut for the exhaust valve also? thanks.
