So….more header talk….this had me scratching my head

Not really. Too many other factors. In addition to cam specs, RPM range(s) of most interest, displacement, VE are three of the big ones. Pipemax will show the effects of changing the variables. At least for me it was well worth the price of admission. YMMV
Thanks anyways. I should have put more research into it before I committed. On the other hand there aren't a lot of people that do custom headers near me. Obviously I had to bring them the car. I believe the dyno place used the 2 inch cause that was what they had for a BB Mopar. 707 hp with MW Stage 6 heads that only flowed about 325 at 650 after Dwayne Porter worked them.Not complaining, just wondering if I should have done something else.