Hank I have a manifold pressure gauge always hook up to my engine and I run 15 lbs. at idle and 25 a full throttle.

Mooneye 777 the pcv valve vents the crankcase of excessive pressure into intake manifold or intake system. What I'm doing is taking the blowbye that the pcv valve is not taking all of and using the vacuum from the carb or intake to drawn the fumes into the carb and burn it off. I really don't know if this is harming the engine or not but there is no more blowby at high speeds, just oil blowing past the dipstick or oil cap on the valve cover. Maybe to much pressure is causing this but it just happened when changing cams, and the cam is not a aggressive one.