Right now I use the 383 HP cam in a 383 Roadrunner. It has 46 degrees of overlap. Ignition timing is 8 degrees BTDC, by the book. Don't know what the total is. I use ported vacuum advance. Manifold vacuum at idle is 16 inches at 700-750pm. Runs good, just smells like a big Briggs and Stratton. Always has.

Thing is, I might try something with a tighter LSA and close the intake valve earlier. That gives you more overlap and bumpty hot-for-teacher idle, which gurlz like, but if it's going to be more stinky, they don't like that. Gurlz want it all don't they? Luv them anyway.