For the longest now, though I have re adjusted my valves time and time again, they still make noise. I thought that it was me, but I do not believe that any more. I have 1.6 roller rockers and they are the adjustable type. But I am using stock valve covers. I am wondering if anyone else had clearance issues between the rocker arm and valve cover. By the way I do have the baffle from the filler neck side removed.