Stockish 340 upgrades, cam needed

I just double checked both Summit and Speed Master and the CNC heads are showing a 68 cc chamber volume. With the Eddy/Fel Pro blue stripe .050 thick 11.2 cc head gasket this hits right around 9.5:1. Close to perfect if it's 91 octane fuel at the premium pump. Not far from being able to run well on 89 mid grade.