excessive 340 crankcase pressure

10 PCV valves won't do **** at high RPM so just ignore that.

If you want to use the system the way it was designed, you need the valve in one cover and a breather in the other cover. Chrysler used filtered air going into the crankcase and that air was pulled through the crankcase over to the PCV valve and then burned in the intake tract.

The system only works at high vacuum throttle openings. At WOT the system doesn't do a thing.

It's my experience that if the rings aren't seated in the first few minutes they'll never be seated correctly. And you can't do anything to fix it except re-ring it and brush hone the bores.

Exactly, since there's no manifold vacuum. lol