Extreme Crankcase Vacuum: Yes or No?

[gmhardwick66]

I ran the PCV valve on one valve cover to base of carb. For the "breather" on the other valve cover I ran a hose to bottom side of my 14" air breather. I have had no problem with oil seapage coing from the "breather" side valve cover. No oil in air cleaner base either. No matter which route you choose to go ...you must have a PCV on one side of engine and a breather on the other side of engine. This will allow fresh air to be pulled into crankcase while at the same time allowing all crankcase vapors [blowby] to be pulled into the PCV valve and drawn into your intake charge.