L31 350 in a '72

[jcd9730]

This is all just hypothetical at this point, but im thinking about this engine:

http://www.summitracing.com/parts/NAL-12530282/

Factory rated at about 255hp. I'd want it to make around 300-350hp, and comparable torque (cuz whats the fun in going slow?) with a cam swap and a vortech intake.

What would be a good cam setup to get near that, if possible? Or should I look more into the GMPP 350HO for those kinda numbers? I'd rather stay will rollers though.

The truck will be my daily/only vehicle at that point, btw. Just looking for suggestions here.