thank you for your opinion sherwood, but i beleive it is false. I dont believe it will hurt me that much because my goal is 400-430whp, if i were shooting for 500-600whp i think i would have a bottleneck with 2.5" inlet piping. He (ATP turbo) and my tech told me that my size piping/inlet will still get me to my goal and it will spool faster then 4" piping/inlet.

Oh forgot to mention, my tech. told me with my engine setup i will be able to rev up to 7500rpms and make power all the way to redline. Man, i shouldve got the 1.06 housing naw, jk, i dont think im ever going to have to rev that high anyways. I dont want to start breaking shit on my $7500 engine.