I have an old Weiand timing cover and Kuhl water pump. Being naive, I thought they would just mate up in the correct position but I was wrong. The pump centers itself on the cover just fine but the bolt-holes do not line up at all or in any orientation.
Is it common to have to drill and tap new holes for this to happen? Or would a cam-drive spacer "clock" the pump into the correct orientation? It pains me to have to drill and tap my timing cover.