Vacuum Tuning

Abody,

I think you are on to something. If I buy a PCV valve that is designed for the stock motor, then it would likely expect more vacuum at idle and thus restrict flow too much with the 11 inches I am seeing. That would explain the rich idle for sure. So how do I get a PCV valve that will be correct? I guess I should search for specs?
The one that I pulled from the motor has Made in USA and 2072 stamped on it.