Cams. Once you settle on a good intake/exhaust line, if you plan to stay N/A, get a good set of cams, springs, and retainers. Say a Crower 63402 and matching spring kit.

Aftermarket rods and pistons would also be fun, kick the compression up to 11.5:1 or so.

A fuel controller and VTEC controller would be nice at this point, an Apex'i V-AFC will do both functions nicely.

I think I already blew your budget by... a lot of money. Oh well.

Note, I don't care much for suspension. Fast now, turn later.