high mileage horsepower

I've got a 93 integra with 130k miles on it, i've got about 2000$ to put into it but I don't want to make any big engine mods if my engine can't handle it. What's the best road to go to crank out some good horsepower within by budget.

NA: Intake,exhaust and headers on the safe side...

Would a frankenstein be a good idea if I rebuilt the bottom end as well?

LMFAO, dude ive got a 93 ls with 180k miles on it. it kicks so hard stil that i blew two of my engine mounts clean out of there place. the front and back ones. but all i have is aem cold air intake, test pipe, dc sports header, greddy mx cat back and a skunk2 racing chip. if i can do it so can you. just pay close attention to the maintanence schedule.

do the skunk2 racing chip or any racing chip really do justice? any place you recommend for it