Awesome car! I built a low deck 512 last summer, and am hoping to get it installed before this spring.
I went with a 400 block, .040 over, and bought the 440 Source stroker kit with the lightweight crank. I upgraded the rod bolts and got the dished pistons. It has a calculated compression of 10.6:1 with a .027 thick Cometic(if I remember right). I put Trick Flow 240's on it, with an M1 single plane. It has Hughes 1.5 rockers on it with a Scott Brown solid cam I got off of Andy F. that is 248/258 .563/.555. I put Howards EDM lifters in it.
I have no idea what it will make power wise, but I'm hoping for over 600. It will be getting a Thumpercarb on it, and be going in front of an 18 spline 833 and 3.54 Dana from the one and only Doctor Diff...