You guys convinced me.. Crankcase breather?

I have my 460 set up with the hose inside the filter and is strictly street driven. No issues. The vent will either be pulling a vacuum or pushing air at high rpm and the carburetor will be drawing as much air as it can sucking in all the oil vapors that hopefully get burned up. Now you tune may change slightly as the vapor will dilute the mixture. There are valve cover breathers that have an oil sperators to prevent oil from crawling up.