I'm about to begin the second stage of my car's project. What would you all suggest for a stock-internal LS-6, with LS-1 heads. Let me give yall the specs on the car now. It ran a 12.4 at 111mph on the motor and an 11.5 at 125 mph on nos (bottle pressure was 720psi). I'm tired of nos, so i sold the kit the next day. The car has Moser 12-bolt, w/ 3.73 gears, tranny built by T-56 rebuilds, 1 7/8 hedders, y-pipe and tuned by Thunder Racing, dynoed 390rwhp on the motor. I'm looking to have more racing from a roll than at the track. I'm also curious how much hp can be gained and ran safely with the setup I just described to yall. Also, let me know if yall know someone that's selling a turbo kit, however, i'd rather purchase from a dealer. Thanks guys!!!