I see you have a block with Summer's Brothers 4 bolt main caps and a Milodon griddle and pan. Check the block very closely for cracks. If it has been run as a fueler, it probably has cracks somewhere.
Almost all of the old racers I knew have p***ed away. I haven't had an Engle catalog since 1977 which I threw away at some point. If all else fails, find someone with a cam doctor to profile the cams for you. If you can go to Steve Gibbs cackelfest, I think someone could help you.
Im actually good friends with Mark Engle but since he sold the company, I don't think he really wants to be bothered, and I understand.