Need some 12v advice

[straight_six]

I plan on making my 94 a DD/race truck and need some advice on some parts so I only do it once. Right now I want to get to 650hp on a single turbo. After this summer i want to build twins and do some motor work and try to get around 800+. What injector would be best for me to use?

Right now the plan is:
Silver bullet (got a really good deal on a used one)
Garmon Trans
4,000 gsk
Arp 625's

Any other advice would be great!!! haha kinda new to the 12v thing :bang