Has anyone tried simply drilling the down-draft tube for a grommet and PCV valve at the top. I think a low mounted valve in the draft tube hole would pick up more oily fumes and the additional 5-6" higher mount on the top of the road draft tube would work out better. Obviously, the valve cover mount with a baffle under the valve would be the optimum if you didn't mind drilling your cover and mounting a baffle (which is a MUST) This way the tube, which would be plugged would serve as the baffle to keep splash out of the valve.
Lack of a PCV valve and a plugged draft tube will fix you up with excessive crankcase pressure, oil leaks and some sludged up oil pronto. Just my $.02....gained from....
