Like I said, remove the PCV and try it. You won't break it
Here's what I do on the race car:
Two oil separators tied together into one hose going to a puke tank. Note the breather on the puke tank. In the old days people just ran breathers on the valve covers and vented to atmosphere. Stinky but simple.
Sometimes you have to get simple to find a problem. You should end up rich when you block the PCV. If you're not, I still think there's a vacuum leak somewhere.
