Lean idle. Rich cruise.

Ironmike said

Well, I did machine a bushing for my MSD distrib that should be around 10 degrees. The 18 that they provide(the least amount), is way too much. I think. I don't know how this thing would idle at 15 degrees initial. Cam is solid roller .668/.668 259/265 .
Might try it. Can't hurt.

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I would say you are going to need at least 22 initial and 24 would be better.

Then you have to delay the curve until you get up to 1700-1800 and then you probably will be 27-28 at peak torque. After that 1.5-2.0 degrees per 1000 RPM until you get to your maximum RPM.

That’s probably pretty close. Within 2 degrees or so.