Thanks for confirming some of my thoughts, my sons a bit quick sometimes to change things and I'm not as quick with the kowledge to disagree, but I'm learning. Altough his done very well building this engine. I think he can pick up more HP and time with experience on the track. He has made 9 runs on a strip on three times (twice very far from home so he did push it to hard). The times have come down from 15.7 to the 13.5 with knowledge and minor things. He thinks the car should be at 12.9-13.1 based upon the HP and weight. I feel he can hit 13.1 with knowledge on tuning and getting it to lockup a bit better. He could also change the gears but I won't let him due to the highway driving we do in the car.