455 with 4.350 bore, stock stroke, Ross flat tops #72792, Eagle H-beam rods 6.635", pistons are .027" above deck, using .060" TA copper head gaskets, TA Stage 2 heads with 64cc chambers.
Rob, Yes, if he has valve relief's in the piston, then you are correct. He did not spec out valve relief CC's or indicate that he does or does not have them, so I did not figure them in. With 7 cc of valve relief, that would cut about a point off of it. JW