LS Bottom End with CTR Pistons, GSR head milled with type R cams, Skunk2 Intake Manifold, and some good tuning...?...I wanna get as close to 200 whp as I can..What's the best and cheapest way to do it..I currently have a stock GSR...

 

i have no idea why you would want to mill your head, with that head and piston combo your going to have alot of compression, i think with that you can get close to 200 whp with some good tuning you can maybe get there, but remember that fast and reliable isnt cheap, dont skimp out and do it the shitty way, and why not just build up the gsr you have......

 

mine made 204whp and 141 tq with that exact same setup