I will try it at 90 degree intervals and check that as well. The rocker shafts are installed correctly (checked that). It just puzzles me that no oil is coming through the galley that goes under the lifters, to the sending unit, back up the other side. It seems to be a large orifice to be blocked, I looked at a bare block I have to see how big it really is. I just don't know if you can have pressure on the pump if one galley plug is missing. I thought if one galley plug is missing anywhere, you would not have any pressure. I have pressure while turning the pump, just nothing in the sending unit galley.