Last time I ran my car at the track the best mph was 99. That is with 3.89 gears. Would dropping down to say 3.08 gears give me any more mph? I realize the mph is a good indication of horsepower. So i guess if I add HP then the mph will come up as well. How much will a 10 hp increase affect my mph? Removing weight is like adding HP because your increasing the power to weight ratio. Am I on the right track? I just want to get more mph out of it. Thanks guys.