Have installed new cam,lifters and push rods. Removed and disabled rocker shafts,making sure all oiling holes are clean. Reasambled,started engine,oil presure 40lbs.Engine at operating temperature,650 RPM,the engine ticking was moderate to heavy.Removed rocker covers,started engine 500 RPM. Little to very little oiling from the rocker arm to the push rod.(More oiling front,less oiling rear>)20/50 oil in engine.Engine tempature 180.NEED FEED BACK any IDEAS?