Screw some belt driven compressor...TDC makes (or is going to make) a single turbo kit for the V6. Turbo is where its at.
Is TDC still in business? I would not send them your money. Your much better off going with a pro turbo kit.
But since you want to spend around 1k, like everyone has said, gears/exhuast/intake/pullies/nitrous.