I went 20 over and used Keith Black pistons, moved the ratio to 9.1:1.
I also used 360 truck heads from an 84 360, I had to shave them .040
to get them down to 67 cc chambers and have the stock 360 4bbl manifold
cut .040 as well to match. So it has a 360 top end. The hp #s I ran on my
desktop...