search the forced induction section mate, absolutely tons of info there.
Try this thread and then go from there:
http://www.skylinesaustralia.com/forums/Fo...ick-t66556.html
With your budget, i'd do fuel pump to be safe (bosch 040), power fc and tune (you should get about 200rwkw). Injectors, fuel reg are useless for your needs, coil packs MAY need upgrading depending on the condition of your current ones. Make sure the car is well serviced, and you put some decent tyres/brakes/suspension on it too