You said you had a ProCharger correct? if so you need a one way check valve so when you going to boost you do not pressurize the crankcase . Make sure you have a check valve on the vacuum side of your PCV hose
Well I finally got rid of my rubber vacuum hoses and made custom 3/8" hard lines and polished them. From the PCV fresh air side to and from the oil catch can and the EVAP line too. What do you guys think?