Here's what I run in my valve cover for a PCV breather. I has an internal baffle and a foam element inside to entrap saturated
oil vapors. It's made by Trans-Dapt and available through any speed shop for under 10 bucks. MFR's part number is 4999. Just stick a grommet and PCV valve in it and you're good to go..
This one in the pic is for the "twist-in" valve cavers.
It works very well too..
