I realized today that I have a lot of porting to do! It was a pleasant suprise today when I found out that the used trick flow twisted wedge heads I bought are actually the 185cc version with better springs ($1900) vs the 170cc version ($1200). I thought that I got a deal before! My problem is that I have a Holley Street Dominator intake, and the Street Dominators have fairly small ports. After I measured I realized that I'm going to have to take nearly 3/16" out of the port vertically and nearly 1/4" horizontally. That sounds like a bunch to me, and the Street Dominator does not have a very large flange for the gasket to go on. Has anyone ever ported a Street Dominator intake or does anybody have any input?