I have been playing around with this car for several months now, trying different parts and combinations. When we first started out it made 557 RWHP @ 7 psi boost. Over the past several months these changes have pushed the rear wheel HP beyond what we believed possible for a stock LS2. Thursday Dec 7th we made766 RWHP 662 RWTQ (actual) 733 RWHP (std) 707 (SAE) @ 6200 rpm (12.5 psi boost)! And its not over yet. I have several additional modifications planned and will continue to update the forums for all to benefit.

http://www.ls1gto.com/forums/showthread.php?t=109327

and the other half at

http://www.ls1gto.com/forums/showthread.php?t=121496