First off.. figure out what you have. Exactly. 99 si block and a v tec head off a gsr

Second... figure out what you want to do with it. All motor/boost etc. if i knew enough about what i could do i would not to i would not be asking you

Third.. Figure out your budget. would like to spend under $10,000 at least for now

Those will be the major factors to determine what you can do.