Are you guys hitting the rev limiter in 4th gear before the end of the 1/4 at the track? I am leaning towards 3.90's just because i will end up being supercharged some time in the future. I wanted to know if you run out with 4.10's because that for sure will be my deciding factor to go with 3.90's if you do. I dont want to have to let off or hit the rev limiter to cross the 1/4.