Ram air air cleaner breather

Have a 67 dart with 360 and modified air cleaner to make it cowl induction ram air, had the air breather hose from valve cover plumbed in in front of the air filter. At 70 mph and 3,000 rpm it pushes oil thru the valve cover gaskets, I'm not happy. Swapped out to K@N valve cover breather, now over 60 mph oil smell comes thru into car, now Wife ain't happy! Would hooking up breather to the inside of air filter instead of outside of air filter limit air flow pushing oil? Motor has 50 psi of oil pressure at 3000 rpm and pcv valve. no issues below 60 mph.