Im using the Corvette C6 ZR1 level 7 and the fastest I can go it 13.290 but usually I am running 13.320 most of the time. I am doing a 2 gear launch full throttle and other people are blowing me away, they are running 12.915. How can I run faster they are pulling away from me right off the starting line. I can go 5 and 6 perfect shifts no problem. Im tired of losing all the time. Please respond with help thanks in advanced.