Another which converter to get post...
Chase
Normally I would suggest the SS4000, but he mentioned roll racing, and I can't help but throw the PT out there....Can't touch it for roll racing!!
In all honesty, the PT4400 is obviously looser than the SS4000, but it wasn't a huge difference and after a few drives, I much prefer the PT in every way over my old SS4000 (I do DD my car BTW). I know I always throw the PT out there, but the PT is so much more converter than either the SS or ST series IMO. If your plans don't include spray, the PT's should be at the top of your list for consideration. 
Another option is the PT3800....which does well on spray!
The Best V8 Stories One Small Block at Time
Never having experienced the Circle D units, how's the topend on yours compare to the PT4000? I'm curious because that was the one thing that impressed me more than anything about the PT4400.









