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Discussion Starter · #1 ·
Hey guys, wondering whats the flow numbers for stock C8VE heads, stock valve sizes. How much would a gasket match porting on the intake and exhaust with polishing the exhaust help the numbers?

Stock valve sizes are 2.? intake and 1.? exhaust ?

And what should pressure drop in H20 be set at 20 or 25?, im dynoing a combo for my buddy and his F350 build.

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