PCV has whistle and/or whine

yup, that’s exactly the $130 adjustable PCV I was talking about. Couple bucks worth of springs and the one I posted earlier works too. :D

and yes I realize I spent more than that on a catch can. But when PCV was right it still pulled too much oil at the valve cover, so it got moved.

How did you make it dual flow like the M/E Wagner?