dkshadow said:
If you are going with a power adder, and the car is mostly for street use, DO NOT go lower than 4.10s. I wouldn't even use 4.10's with a blower because your not going to have any traction on street tires what so ever. Your gonna sit and spin. Go 3.73s maybe 4.10s if you are really serious about a blower in the future. The hell with top end, it's not that much anyways. Ever been in the stang when it's pushing 147??? I did it once, kinda wobbly and scary, and not worth getting your remains scraped out of the cabin after you blown a tire, or lost control.