I have a 90 crx with a z6 swap. I built the bottom end - crower rods and srp 10.5:1 pistons. Also DC header and 2 1/2 exhaust. Akimoto air intake. The top is stock. I run this on the street and will go, sometimes, 1/4 mile next year. I have an apexi and a cam gear to go on yet. I'm not sure where I should go with mods next throttle body, intake, cam, other??? Other than dump the engine and put in a real one, where will I get the most gain for the money?