theres alot you can do it all depends what level you are looking for.
Are you looking for bolt on power, if your motor is healthy enough for it, or are you thinking of flowing the heads, getting better duration cams, and upgrading the ignition?
All it comes down to is how far you are wiling to take it, or can, money can be a concern and lack of skill as a mechanic is costly. Let us know.

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Current Mods
White gauges and Temp Cntrl, OHCw/Buggman LED mod,
Bosch +4, Accel Coil Pack, MSD6AL, Walbro, HiFlo Fuel filter,
Custom Ram Air, K&N, Ported / Matched intake, JBA 9mm wires,
Tweeked FPR, EBC 6k's, DynoMax-S CatBack, Jet-Chip, Reflex shocks,
New Anvil Mounts, Timbren's, Optima Yellow, DB 220A Alt. w/4g. jumper,
Western snow plow, More2Come