[SSLance]

Thanks Brew... And that is an AWESOME illustration that deals with my current issue.

I now understand how that at high load WOT conditions, PCV valves will close instead of staying open causing a foul air condition and ALL blow by gases to exit the engine via the vent which in my current case is just a breather meant only to allow fresh air into the crank case.

Considering how much time my engine spends at high load WOT...this is all starting to make a lot more sense.

I'm thinking option 3 from the link is a good fix, twin catch cans with no PCV valve. This way air plenum and intake vacuum is pulled from both valve covers at all times under all conditions and all air coming from the crankcase goes thru an oil/air separator first before entering the engine to be consumed in the combustion chamber.

Now, to just find a couple affordable catch can separators and ways to plumb them to each valve cover opening.