I already bought them. Guys run these all the time. I think ill be close but from my reading I see guys around this compression running pump gas and the same heads.
Hang in there, use one of the cams you've talked about, get your retainer to seal clearance checked and fixed if necessary and you'll be okay.
With a big cam, I've run 91 octane, 11.9:1 compression, 906 heads with .160" quench (zero deck, .120" combustion chamber depth, .040" gasket), locked distributor at 38 degrees initial and had NO problems. You WILL be able to make those heads work.
