A. I've never met an engine build that was the least bit impressed with anything that didn't come out of his shop.
B. While he's going through your engine...put a cylinder heads on that thing that has at least a half a chance at moving 427ci of air. Those heads are just fine....for a mild 302.
You'll be glad you did.
https://www.trackey.ford.com/downloa...-6049-z304.pdf