Hey...im tryin to build a fast all motor LS. So far all i have is intake, exhaust, FPR and CTR pistons in my motor. Compression should be around 11:4:1. I dynoed a while back and had 141 HP and 120 TQ. I guess thats ok, but im getting a LS head to work on. I was planning on port & polish, valves, springs, and cams. Is there anything else i can do to it? I want to get around low 14's, dunno bout 13's though. Any help appreciated.