360, stock heads with larger valves and a 3 angle job. Compression was roughly 9:1 at the most, the cam came from an edlebrock top end kit that included the performer manifold and a 600 edlebrock. I'd later swap to the RPM but Didn't change the cam. I don't recall the cam specs but being that it came with the off the shelf top end kit, I'd guess it was their match to the performer cam. Timing was also retarded about 5 degrees.