Valve cover breather and oil?

Thanks guys, I was really worried about this. I'm buying some chrome ford covers, from Beni, that have a good baffle. The ones I have are the composite(plastic type), they are blue. I had some nice crinkled alum. covers to start with but they wouldn't clear the roller rockers so I had to trade them back with Holcomb for something that would work. These I'm getting from Beni are taller. I have a 1/2" plenum, I think they should fit ok.

I'll let you guys know if this doesn't fix my problem. Thanks!!