Ok, I guess the next question would be why do you think it's fuel? Have you checked valve springs? Timing?
Lots of things can cause your problem, not just fuel. For something like what you have, you need o2 sensors in the exhaust if you don't have them now. I would consider them mandatory. Two will work, but 8 would be better. Are there any tuners there that can help you? From what you are saying, I think you have more problems than you realize, and just targeting one isn't going to fix it. You need to have the whole package looked at and evaluated. I'm not the best, but I do know when things are getting a bit too complicated to try and fix in a forum. The best advice I can offer you is to hold off on the track time and take it to a savvy shop that has a chassis dyno and let them get it tuned for you. It might cost several hundred dollars, but that's certainly cheaper than a meltdown or catastrophic failure at the track.
I hope you get it worked out, sounds like it would be a fun ride!!