alright, it is VTEC but no biggie...
anywhoo...here we go.
w/ a budget like that (im going to assume that u have a gsr w/ a b18c1 motor), u could build a decently quick little car.
u could go for forced induction (s/c, t/c or nitrous) and that'd be the most power for the least amount of money (nitrous especially.) whtteg knows more about nitrous than i do, so i'd suggest asking him for some extra information if ur interested in that route.
the only main problem w/ the turbo/s/c would be that u wouldn't have much money to build the internals of ur motor. which would mean that you could run around 6-7 psi SAFELY and see mid-high 13 secound passes as long as u can drive.
if u wanted to go all motor, then u could start w/ the standard i/h/e/cams/ecu etc route...u'd get less power from the additions (considering the i/h/e is only going to free up the power the stock parts resrict) but at the same time u'll have a very reliable street car that is a bit slower.
hope i was some help, sorry to be so brief and broad, but i gotta get going.