Just my $0.02 here, but I have never really been concerned about "how much horsepower" will a certain combo make. I'd be looking more at what you intend to do with the drivetrain once it is built. Is this for a street cruiser, pure strip machine, mud truck, etc. ? Where do you need the power? Lots of power in the low to mid rpm range for a cruiser? Peak HP for the track? Match all the parts (from front to back) to work together and you end up with much better results (and satisfaction) than shooting for an arbitrary number.

If you want a guesstimate, I'd say you would probably end up somewhere between the 370-410 HP area at the crank.