That 528 crate motor would be cool. Could even put EFI on it since the 337 intake has EFI bosses in the correct locations to work with the Edelbrock fuel logs.

The iron head motor was one that came into the engine shop a while back. I don't remember many details but the guy had some single plane intake on it with a goobered up sheet metal valley pan. I talked him into a 337 intake. It solved his oil leaks and it made good power on the dyno.