Strange Oil Leak

OSUcowboy said

The motor was rebuilt less than 10,000 miles ago. When it was done, new pistons and rings were installed. The head gasket is not blown. I just had the heads off, and everything was fine. I will check to make sure the PCV / hose is clear.

Is it a must to have a breather and PCV valve both? I have just a PCV without a breather. It was my understanding this would work since the PCV would hold the crank under a vacuum.

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I know of no engine that is set up without two openings into the crankcase. Traditionally, the pcv is one and an open breather linked into the air filter is the way "it was done"

This setup insures that say, under high throttle settings, the PCV may not keep up, and the crankcase may push vapor out the "intake" and into the air filter where it's simply sucked down the carb throat.

Some older cars (early days of PCV) used an open breather. The problem with this is that fumes then are ejected into the "engine room" and can be noticed sometimes, in the cab

I'd say you might have found the problem.