Hemi Pcv

I run a modified catch can. The pcv valve is plugged into the top of the can,the vacuum supply for the valve goes to upper intake manifold fitting. It pulls crank vapors from the fitting under the fuel rail to the side of the can. I learned early on not to put direct pcv vacuum on that port. It will suck oil right off the exposed valvetrain. I installed a breathable oil cap and a vent from the oil fill tube to the air intake tube. Using a prefix single plane 4150.