I have a set of afr's on a 99 vette. They are 225's for a 4.125 bore. The problem i have is that all of the intake pushrods scrub to the right side of the heads. I have already milled the pushrod holes, went through into the intake port and still have min. clearance. I called Afr and of course they tell me there is no problem. I have tried comp shaft, and jesel sportsman rockers and they show the same thing. Since I've bought 3 sets of Afr,s in the last year and never had a problem this could be a isolated incident. Tony Mamo??????