Thanks again guys...gives me more hope for 12s, and makes me want to hit them even more lol. As for the springs, I was shifting at 6K-6200 in every gear. I wasnt worried about them, didnt even cross my mind . im pretty sure they will be fine. I even found out that I DO have a rev limiter, hit it @ 6500 when I missed 4th. (powershifted 3rd on one run and tried to do it on 4th...but just hit the invisible wall) I powershifted 3rd the last 2 runs because I screwed up the launch and wanted to get some practice in.