What's the deal with the Poly 318

rumblefish360 said
How about a forged piston with being capable to ha doe .600 lift cams?

I don't know. My engine was spec'd out by Gary. I picked the cam, and let him put in it what it needed. Those are .040 over slugs at 9 :1, not custom. My block was decked and heads milled to get a rough 9.4:1.