i cleaned them . razorblade, and brake clean the first time. i looked at them again this moring and realized that some of the oil on the passengers side is coming from in between when the head and intake mani seal together on the back of the head. and both valve covers do appear to had a rollto the flanges. im gonna go ahead and do the intake manifold gasket as well, and i may find some cast aluminum valve covers. thank you for the input