My rockers above cylinder #1 are hardly getting oil. All the other rockers have the oil bleeding nicely from the oil holes in the tops But #1 just hardly dribbles out. I have removed the shaft and checked for debris and sludge. Also checked the the rocker hole and all is clean. Possible fix for this? My oil feed tube located in the center of the 2 shafts is also almost fully pinched off. Even if i rev and hold the rpms up it still hardly comes out. My oil psi reading is nice and high on the gauge sitting around 35psi.