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I have port matched to gasket but not head. No percievable gain in either . You'd only get 3-5 hp gain if you went from an LS1 to LS6 intake on a stock engine and I think swapping the FAST intake would add up to 20hp, so porting itself just adds to whatever additional hp gainers are done.
From: Supporting the Corvette Community at Abel Chevrolet in Rio Vista, CA 707-374-6317 Ext.123
St. Jude Donor '08
Originally Posted by dieseldave56
I have port matched to gasket but not head. No percievable gain in either . You'd only get 3-5 hp gain if you went from an LS1 to LS6 intake on a stock engine and I think swapping the FAST intake would add up to 20hp, so porting itself just adds to whatever additional hp gainers are done.
It is not uncommon to gain up to 15 RWHP off a port job and re tune
I doubt that port matching can add any where near 15 rwhp. RichieRichZ06 can you show us some thing to back up that claim .
I can definetly see how porting heads and manifold will produce ssuch gains but not port matching. Thanks