Hello all, I'm trying to figure out what valve cover breather I need to use. I'm running a Moroso air filter assy that has an add on port that is 3/4" OD. Valve covers are M/T cast. I am looking at using something like the Mopar P4120446 but I have been unable to find a spec on the nipple size for it. Any help would be appreciated, hate to buy one and not be what I need. Thanks in advance.
