Have you given any thought to the dual PCVs sucking atmospheric air into the crankcase at the formerly leaking rear mainseal, because you know, that the rear main seal is designed to prevent pressure escape.... not pressure intrusion. You could consider it a one-way valve.
Rear main was replaced twice , plugs show no signs of oil ,checked pcv hoses going into the sniper for any traces of oil nothing , engine doesn’t burn or dump oil , Idles @ 850 rpm. I know it ain’t the right way of doing it but it works AJ.
