We have totally rebuilt the engine and we had the Cam 180 degrees out. After fixing these issues it fired up. We were using a manual gauge that shows no oil pressure. So we put sending unit back in and oil light was burning bright. Lifters starting making a little noise so we shut it off. We did not rebuilt the Oil pump just cleaned it real good. Even took a drill and turned Oil Pump with distributor out and valve cover off and couldn't see much oil movement. Was hoping it would come to life after more RPM's. So now we are once again baffled.