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Just a note. The PCV should be shut when the engine is under heavy load (WOT) because there low vacuum. If the throttle body blade is wide open the difference in vacuum pressure before and after the blade is vary small which lets the PCV shut and there is no positive airflow through the crankcase.
ZZP's tiny groove should work because there is not increased flow through the crankcase at WOT, there is less airflow or none.
I have been thinking about this more. I have a couple of ideas.
I would still run a front valve cover on the rear head try one of these PCV valves:
I was thinking I could tap a oil cap and screw this PCV valve into the cap with either an o-ring around the base or some RTV.
http://ecx.images-amazon.com/images/...500_AA300_.jpg
Another option would be to tap the oil cap and put a barbed fitting on it with an inline PCV like this one:
http://ecx.images-amazon.com/images/...500_AA300_.jpg
With either way of doing it, the line would then run to the catch can. I will have to tap the EVAP port on the Gen V that is currently blocked off and run a hose from the catch can to that fitting.