A PCV valve has no place on a Hi-po motor.
The header mount evac setups do work, but they work best w/o mufflers. If you do run mufflers, it better be a good system with straight through style mufflers...NO flowmasters. Any backpressure in the exhaust system will cause it to pressurize the crankcase. The nipples welded into the headers cause a siphoning effect and draw pressure out of the valve covers. This is the cheapest route.
I run a vacuum pump on mine, works better than the header mounted evac tubes, makes more power, but it costs a lot more.
You could just run some good breathers, like the Moroso valve cover mounted open element breathers...the ones that come with the tubes so they sit above the valve cover. They just fit in the normal 1.25" hole that most valve covers come with. You can put a piece of steel wool (brillow pad) in the tube under the breather and that will drastically help with oil spewing out under power.
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