What goodies do I need to build a Fast slant 6

you can't get past the lousy head so you need to force induct it to get those power levels. if you want a fun street car, get some 3.91-4.30 gears behind a slant with a 2 or 4bbl intake and a good 2.25 exhaust or headers, but its gonna run out of steam fast. 300WRHP through a 904 and a rear will be closer to 330HP net