Aluminum stamped valve covers

Who makes aluminum stamped valve covers with breather openings at the front of BOTH valve covers?My car always pukes oil down the pass. side hose of my EVAC setup....and spews oil down the underside of my car.Yes there is baffles in the aluminum stamped covers I have now.My car never did this with the old MT valve covers I had.Any leads/links to a pair of these would help,as all the ones I see have one breather up front,one in the back.Thanks