For a short block rebuild, I love ether the KB-107 or the Speed Pro 116 hyper slugs. At a zero deck height with a .038 head gasket, there approx. 9.8-1 in a 70cc J head. If the piston doesn't sit at zero deck, which it probably will not, you'll be in good shape. I ran this 360 combo (same as yours above) on 93 octane and a Purple 292/.509 cam. No problems.
Car was a '73 Cuda, 4spd, 4.10's, 28 inch tire.
If you get this well tuned, you should be able to run low 12's. Better if your a light weight car.
