I have a fairly nice set of M/T valve covers that need a baffles added. Who ever cut the hole for the twist in breather for some reason is backwards, have to turn it to the right to loosen. It was done by hand with a butter knife I think, but it does work. Other cover has just a round hole for a pcv. Running just breathers on both. Any recommendation for an add in baffle, all the ones I see are for chevys.