Ok I'm working on a 5.0 HO motor to go into a 65 and its a question of serpentine or v belts. I want to run ac and power steering. The question is why would an efi timing cover need to have a reverse water pump? I saw one of the early covers on a chart and circled it. Totally agree the port is in a different position and water pump back would block it but from what I can tell about most covers is there's no port for the fuel pump and dipstick. I dont get the reasoning? Help!