If you're shooting for 400+, be prepared to have the heads cleaned up. It's a decent head out of the box, but there is a lot left on the table with them. Even at 11.8 I'm gonna say you'll hit 430ish maybe 450 on a perfect tune. Run a Performer Air Gap intake, go with a solid lifter cam. With modern lobe profiles the way they are there will be very little adjusting on them. Even with a ton of street driving. Stick with a Flat top, or dished piston. With the smaller Combustion Chamber size, Zero deck the block, get it line honed, .039 HG like a Fel Pro 1010.
Run a piston like this:
9.7:1
http://www.kb-silvolite.com/kb_car/performance.php?action=details&P_id=94
or
11:1
http://www.kb-silvolite.com/kb_car/performance.php?action=details&P_id=99
This cam will do well.
http://www.summitracing.com/parts/CCA-12-663-47/