These don't belong to me but they are extremely cool! The bumps were for the rare adjustable rocker arms.
Lots more cool Hemi covers here: http://www.hemiengineparts.com/pages/valvecovers.html
Crap! That is what I need for my 392. I have adjustable rocker arms. They will hit the covers that are on it now....we're these for sale?
Appears that they are for sale... http://www.hemiengineparts.com/pages/valvecovers.html