I was just interested in seeing what information I could get from you all. I am going to be running stock head with comp stage 2 cams, adj cam gears, AEM short ram, FR Intake, Shorty header, High flow cat, fswerks stealth cat back, and probably have the xcal tuner. My question is how much of a difference will the swap make for me? If I get the FR Head then it will be done last. Also what is the price difference/advantages of porting a stock head compared to swapping to the FR head?