Carbed Magnum parts list?

OH dang, I did forget the B&M flex plate I used since I didn't have one on the engine when I did this. It was a little pricey but worth it should you not have a flex plate that came on the Magnum originally. I mated the 5.9 to a '70, 727. The converter is a zero balance. (AKA Neutral balance.)

I've been shown a few cams. The issue right now is the stock Magnum heads and the lift limits. (Actual wallet limits :D )
I'd like to get a set of heads and a moderate cam.