Gears (4.10s), a good stall converter, a good shift kit and last but not least the reprogrammed computer chip to compensate for the gears.
A high flow cat h pipe if you have emissions if not then maybe an off road h pipe would be in the mod list somewhere along with the cat back exhaust.
You didnt mention how many miles it has.....that would also stipulate the mods.
Dont forget lowering springs to get that CG down. A Cobra intake would also be a relatively easy/cheap mod that will give you a nice kick in the pants.
I am not sure how many miles are on it. the motor has been replaced. I would guess 20k or so. 90k on the frame. I was thinking of supercharging or dropping a crate motor in. so if I go the Supercharger route would 4.10 gears be to steep? I also would like some top end since i travel 100 miles a day to work. (50 miles each way)