today I heard some ticking from the passenger side of my engine so I pulled the valve cover off thinking one of the rocker arms came loose & I was going to tighten it up. I know oil come out of the pushrods & run down back into the enging but the passenger side had nothing. I checked my oil gauge to make sure my oil pump was working & it was reading 20psi so I pulled the drivers side valve cover to see if oil was flowing normally on that side & it was. I ruled out the pushrods because I pulled a couple of them to make sure they were not clogged. I been seeing oil on the ground on the rear passenger side of the engine and some coming down the starter dripping onto the header. I was thinking the valve cover on that side was leaking but I stuck my hand back there & it was dry. Have anyone heard of oil only coming thru the push rods on one side of the engine? If so, how was this fixed... If it can be! The engine is a Chevy 355 & the block # is 3970010