Perry,
I'm in the process of building the engine now. Still working on the block, so it'll be a while before I have to nail down my heads for sure. It's a 351W stock stroke, my target is 350hp (probably 5500ish rpm) and 350-400tq around 2000-4500ish. I found someone with a similar config to mine
here ... you can see his dyno results there, and they're roughly what I'm after.
I had planned on GT40P heads (as that person did). But I could certainly save some money by using ported 351W stockers if you think they'll do the job.....