Rusty,
I think your hunches are right.
I run about 10 initial at 600rpm, 32 total mech at about 3000-3500 all in. The curve starts quickly at about 1000-1200rpm.
Good for stock cammed 8.0-8.5cr or so 250 and 292, both of them turn in good times.
Adding ported vac, the total adv is 50 or so.
Panic is right though, best is to try it and clock the results. In cool weather you could kick up the initial to get 21 initial and 32 total mech, just to see if it runs better. If so, then I'd fiddle with the recurve to get about 10-12 initial with 32 total.
