Thats the problem everybody uses twin cams nobody tries the single... I want to try to get it into the 12s all motor.. If i cant with a fully built single then ill use nitrous. Dont really want to though. What numbers should i be getting with a fully built z6. The block is at my house right now. Bored .20 over wiesco high compression pistons. JE rods and wiesco rings and locking pins. Crank was knife edged, balanced and blueprinted.