i would say nitrous!

i started on my car by putting a small 50 shot to see what would happen, and now im building a 500+horse nitrous powered pony! it's all about how much your motor can handle. i dont want to push over a 150 shot on my stock crank and rods, but than again i have the forged pistons unlike you. A 75 shot would be a nice addition to the GT.

dont bother with longtube headers, it's really REALLY expensive and the gains just arn't as impressive as another way to spend a grand.

Wet Nitrous kit and a ported bullitt intake is the ultimate combo in my eyes. the manifold will handle backfires unlike the stock one, and nitrous is DA ****!!!

I dont think spraying is for me. I want 300rwhp on tap any time. And I am a street driver so I would hate to spray and then hit a damn red light or something like that. But thanks for all opinions.

:D :D :D