Thanks Mike, I checked out the Pace Performance site and I like them. Problem that I have is my ali. finned covers have to have a PCV valve to let the engine breath better. The after market covers I have also have a blank oblong area in the middle instead of the fins going right across the length of the cover. The other annoying thing is with my early Offy Tri Power manifold, I have a choice of three different oil filler openings.