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.