I knew these guys could talk better sense into you chance

I'd run the spray, If you wreck your car or something just pull off the system and then put it back on when it's fixed, I know your worried about insurance and stuff. I think you can get what your looking for n/a man. Just get the heads ported and see where you are, you will probably be around 450rwhp with a nice port job, or more depending on how aggressive you go.