The camshaft seal, Part number 6420100131 is what the PCV mounts to. Very rarely does it get changed, but it allows a lot of oil to make it to the PCV and then the intake. The PCV "kit" includes the PCV puck and short hose to the intake. Did you replace that?
https://www.idparts.com/images/7658_ccv_cover_wkcrd.jpg