quick CR estimate on KB107's

Heyo, can anyone help me out with the estimated comp ratio on a standard bore and stroke 360 with 66cc eddy heads and KB107 pistons? (With the usual .039 or .040 gasket.) Just doing some research, rest of the project would include a SP manifold, 750 carb, 3000k converter, and a 292/ 292 with about 500~ lift. Too aggressive for a street/strip machine on 91 octane?

This is a great calculator to play around with.http://kb-silvolite.com/calc.php?action=comp