The "Throw Away 318"

On your oil pressure issue, I once put a hotter cam in a 1967 318 I had put in my Duster and I only had about 10 psi oil pressure at hot idle afterward with no other changes. I think I read somewhere that the 1967 318s had a different size cam bearing on the fourth one from the front or something like that and it was just that one year block. Anyway, I ran it hard but it never blew up. I ran 50 weight Valvoline Racing oil in it.