I am currently running a basic Vortech setup on a fox. The PCV routing is exactly like what is factory from Ford, and the instructions from the SC kit. The PCV routing in the back of the intake is untouched. The hose from the oil fill neck is going to the air filter shield with the glass filter. Isn't this setup just like having a open breather cap? and what you call un-metered air? I guess the line from the oil neck can be run back into the inlet tube on the Vortech inlet, but I don't want the impeller getting oily. What are you guys doing?