Anyway for a v6 I hear people going to dual exhaust.
3.73 for more highway driving, 4.11 for short trips, 3.9 between the two.

 

First, take a good look at your V6, even if you spend 2 grand on it, it still will not be faster than a PI V8. Are you sure you want to spend money on your V6?

For apperance mods I'd do wheels, lower vehicle, make it look like a GT. 4:10 is a way to go for your V6.

 

whats the pi upgrade or the pi v8?\ that yall mentioned...i heard 4.10s dont make much of a difference on highway mpg than 3.73s less ur goin over 80 or so....constantly, id roll with the 4.10s if i had money ...but for the money to do all this performance work, jus find a used gt motor to put in......
also how well do the 4.6 and 5.0 motors react to upgrades like bolt-ons or pulleys,intake,jus basically everything except internal work...?