My valve covers were leaking so I replaced the gaskets over the weekend. I used the Fel-Pro rubber ones. I cleaned both the valve cover and the head mating surface real well. I used RTV between the valve cover and the rubber gasket and let it dry before installing. Problem is now that the covers are leaking more than they did with the old cork gaskets (that were rock hard). I do have the spreader bars and think I've got the covers torqued down enough. I don't want to go to hard on them though.
Anybody have any suggestions to fix this leaking problem? I know it's common. I really don't want to have to Permatex the head side of the gaskets.