Some time ago, there was a group buy on aluminum 2.8 V6, valve covers (rocker covers) from Ireland. Curious, how was crankcase ventilation achieved? There is only one fill outlet/inlet, no provision that I can see for second vent or PCV valve. Perhaps buy two covers both with the same fill/inlet/outlet and install the PCV in that cover or? Is there a special cap that fits into fill/inlet/outlet that would have to be ordered also from Europe or? Thanks for the help on this. Steve V. 2.8 in Arizona