4.56

So my car is currently around 700whp, looking to cut down on 60-130 times without adding any more power. It is around a 6.8-7.2 second 60-130 time with 3.55s. I would like to cut that down to to at least the low 6s. I know going with 4.56 will eliminate the 2-3-4 shift and only needing a 3-4...