The PCV/Draft tube opening is capped off on my motor. My "old school" tunnel wedge intake has a breather cap on the
oil fill tube. I also have a K&N breather on my driver's side valve cover. The passenger side valve cover has a PCV valve that takes suction from the intake manifold, below my aft carb. My crankcase is
WELL ventilated.
FEs tend to leak, no sense helping them along with a positive pressured bottom end.
