Better check your math again that compression even with zero deck flat tops unless your open chamber heads usually 90+cc's have been milled to around 80cc's.
I would buy a set of Stealth's have them looked over good, and upgrade the cam...
I built a similar engine for my Cuda, stock 71 440 steel crank, KB 237's which are about .010 in the hole with my deck height, a set of OOTB Steal (82cc)thE heads worked out to be about 9.8:1 or so and the car would run high 12's with stock converter, and 3.31 gears, and a 270/.470 Comp Cam, RPM intake and bg 750 Gold Claw carb.
I know without question it would have run well into the 11's with another converter (4K) and old MP solid cam I had laying around.... but the car was a daily driver and actually got 14-15 MPG the way it was!