Reply to "500 BHP 351 Cleveland"

In addition to what everyone else has observed, I have seen oil in the exhaust from 1) headers that scavenge too well. Yup they suck the oil through the stems with or without umbrellas. The seals just reduce the amount, not eliminate it.
2) valve cover leaks running down on the header flanges. Stupid but true.

Not to be argumentative either but I don't believe in a PCV system in a real HP car. Oil syphons out of the valve covers and into the intake manifold.
All you guys with the aluminum high port C heads listen up.
In order to keep the valve springs from failing under racing conditions, they were designed for racing, they build about two inches of oil in the valve cover to submerse the spring in oil and cool them.
In a Pantera with it's low carb location a big syphon flow into the intake manifold is created.
It is possible that a big cruise (a couple of hundred miles) will suck in most of your oil.
How do I know? You don't want to know.

With an engine that runs as hot as a Pantera, and synthetic oil, you won't get any sludge build up in the car with an open breather.

Run you breathers at least two inches out of the covers too. The oil level in the covers runs very high.