I spend a lot of time on Ford-trucks.com, but needed a spot of advice on my 352...

Doing a rebuild of my 67 F-250 4x4 and had the front clip off for other reasons.  There was an oil leak from the rear of the engine and I was in doubt about the clutch, so I pulled the engine.

Thought there might be a leak from the rear of the manifold, but it looks dry.  What was this hole in the manifold for that some just plugged with “goo”?   Intake is a Ford 4bbl from 65 or earlier, as it has the oil fill tube.

Cam plug appears to be in backward and the area is oily.  Should I pull the galley plugs and put thread sealant on?  Pull plug and put new one in?

Engine side of plate behind flywheel was a little oily, but nothing major.

Finally, thought you would get a kick out of the bellhousing.  Why would someone do work on this truck and never clean off 53 years of grime?  Weird..

Thanks in adjacent for advice!
Chris