I think some of the people in this thread has actually provided some useful information.
It all depends on what YOU want to do at the end of the day. How big is your budget?, Is this your first track car?, How much experience have you actually had on the track?, Still want to street it?
If you are fresh and new into this kinda thing the cheapest and easiest option would be to do a standard JDM bigport conversion which you could still use as daily/street car and with a good suspension setup you should be fine with your track duties. When you get more experienced then maybe think about going for more power?
If it is a track dedicated car and you want forced induction I'd probably just go all out and go for a SR20.
Lurk harder and you will find your answers.