The vented fill cap will do a good job of supplying air to the crankcase for the PCV to draw into the intake manifold. It will provide a positive flow of air through the valve cover and down into the crankcase, taking blow-by and combustion gases with it.

You will need to have a riser tube of some type at the road draft tube hole to prevent the PCV from drawing splashed oil into the manifold and causing the engine to consume a lot of oil. Most people use a regular road draft tube base, and adapt a rubber grommet to it for the PCV valve to plug into instead of the tube that hangs down into the air stream.
Jerry

Last edited by Tiny; 05/10/2017 3:35 PM. Reason: removed political reference
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