Clearance for RPM Air Gap...

Frnknsteen - That was a really good explanation. I totally get it now. Much appreciated.

While sucking heavily from the PCV side (like cruising the interstate at 3,000 rpm and a small throttle opening), there needs to be a "relief" somewhere that will free up the PCV to work as intended. Otherwise it's like sucking the air out of an empty bottle. Once you've suck so much air out, it begins getting difficult. But with a small hole somewhere else in the bottle, you can keep sucking air through it.

I'm going to go the Scummit website and try to make sure the drop base has a port for connection.