Originally I had placed a breather on the end of the barb that protrudes from end of engine valve cover. I didn't want to contaminate the air fuel charge with crankcase vapor.As you know this recycling thing is good for emissions but not so good for max H.P. Same thing holds true for EGR (exhaust gas recirculation).You burn't it once, why run it thru again!!
Because emission regulations dictate so. With this said, I purposely redirected the crankcase ventilation hose to the air cleaner box for 2 reasons: (1) With the inlet location on the aftermarket hoses and stock airbox for the crankcase hose there is a stronger draw or vacuum at that location. Resulting in higher levels of air & fuel charge contamination

No! No! don't want that, we are trying to find power not kill it!!!!
(2) I'm compliant with emission regulations this way.
As for drippage on the filter I have allready logged 400 + miles on this design and no signs. But, as the engine gets older I could see blowby increasing to the point where it might. I change filters way too often anyway and most people that are looking for that performance edge do also.Besides I would rather deal with a few drops of oil in my air filter than sucking it thru the intake and robbing me of POWER


That's my 3 cylinders worth , Barney O.
Speaking of evolution, air filters in my younger years were oil bath