Adjustable PCV and oil catch devices?

Do you mean you don't pull in unfiltered air or do you mean the only thing passing through the PCV is crank case pressure, and there isn't any actual flow through the engine?


I mean it's a sealed system, rather than the way a PCV was designed. For it to be an actual PCV system, it should pull in fresh, filtered air into the crankcase from one side and then into the intake system.

I want my deal to pull a crankcase vacuum. Almost like a vacuum pump.