Well, you got the username right, but the first name is a little off.....
Greg, the TW heads are awesome. I use TFS heads for quite a few builds and they never disappoint. For your 331, I would use the 185cc heads and the 58cc chambers work really well with flat top pistons to yield a 10.25-10.5 ompression ratio.
I've never used a Trick Flow cam, although they probably just re-package a Comp, Crane, etc. TFS is owned by the company that owns Summit Racing.
If you're wanting a hydraulic roller that will yield a 6000-ish hp peak, you'll want to stay down around 220-224 @ .050". A 110 LSA works well and I'd keep the lift somewhere around the .600" mark.
If you wanted something off the shelf, I would use a Comp XR276. However, you can usually get something a little closer with a custom grind.
You'll have a strong performer with your combo...
Brent Lykins
B2 Motorsports