I did an S/C build like yours made OK power but got bored easily so I went turbo. I love it. Current setup is
Engine:
T67 Turbo (Precision 6776)
XP Cam (Going ST5 shortly)
Stock Bottom End
Stock Heads ( Heavily ported race heads on the way)
115# Injectors
E85
GFB Boost Controller
Transmission:
1in GMR Chain
1200hp Aermet IS
Chrome moly input shaft
TEP Stage 2 rebuild kit
and a set of MT ET Streets for good measure.
Pushing around 25 lbs of boost and making around 550 wHP, after i install the heads and cam things will get even more insane.
Go turbo.