[ROUSHAC]

Skip,

A lot depends on whether you will be racing and need to hold the RPM's in a certain range for max torque at all times or just use the car for street cruising.

3.91's may be a bit too low to get anything resembling traction in first gear. You might end up having to start in 2nd all the time on "vigorous" launches. Also, if it matters, it will KILL your mpg.

Do you want to make lots of pretty smoke on the street or do you want to just put the pedal down and shift when you hit redline with minimal tirespin leaving others in your rear view mirror?

I make enough power to have a reasonably good launch and good mpg with the stock gearing, so for me they are a good compromise.

Good luck with whatever you decide.

Cheers!
Dave