L leon_reynolds Founding Member Apr 24, 2002 91 0 6 Mar 15, 2006 #1 Mar 15, 2006 #1 How much performance gain could I expect with stock heads that have been ported to take 1.9 intake and 1.54 exaust. Is it worth the time or should I wait and get 2.02 and 1.6?
How much performance gain could I expect with stock heads that have been ported to take 1.9 intake and 1.54 exaust. Is it worth the time or should I wait and get 2.02 and 1.6?