Wow, thanks for all the kind words! I've never been so freaked out on an engine build before, no one seemed to know much about it beyond the most basic, and I'd heard all sorts of bad stories about this engine. I wouldn't hesitate to build another one at this point, I think I know what crazy crap to look for.

The only remaining "mystery" is the oil pressure relief valve spring nonsense.

The cam specs I will enter tonight (just re-found the sheet) but here they are:

at 050 lift:
duration 202 degrees, I and E
108 degree centerline
108 degree separation
.39" VALVE lift

Comical for a "performance" cam, eh?