A shorter geared trans will out accelerate a longer geared trans anyday on paper. The issues come into play as to when you can not get the power to the ground effectively or you are out of rpm/mph and need to go to a longer geared tranny. My car made 800+whp and went 15Xmph in the 1/4 and I am using an ITR trans. If you can get the power to the ground and have the rpm/mph that you need, go with the shorter geared trans.