Originally Posted by kjewer1

You've managed to thoroughly confuse me now. There is no appreciable vacuum in the intake pipe. The only vacuum worth mentioning is from the intake manifold via the PCV valve. Once that is disconnected, there will be positive pressure in the crankcase pretty much 100% of the time. If I'm understanding you at all, you're talking about leaving the vent to the intake pipe hooked up and venting the PCV port, which would indeed be a bit unconventional. People usually do it the other way around, which porks trims since you still have a solid vacuum applied to the crankcase via the PCV valve and an open system with the intake port vented.

What poeple with high HP setups tend to do is to vent both the PCV and the Intake ports to atmosphere. Plug the hole in the intake pipe and in the intake manifold, and drive it on.

If none of this applies to your qestion still, you're on your own.