Quote Originally Posted by xringshooter7 View Post
Yeah, I don't plan on going past a 3.4 with headers, rockers, and a fwi. I think ill just stick with stock replacements
valve float.

Ls6 springs - .570 maximum lift
L76 springs - .510 maximum lift

I only paid $89 for L76 springs at the stealer-ship, you can find them online for cheaper.