Loss of power 95 f350
I bought a 95 f350 in Dallas and drove it to Colorado. Driving flat it runs fine but has no power once you hit a hill. I took the bed off hoping the screens in the pickups were clogged. The screens were missing in both tanks. The rear tank is dirty, like bad dirty. The fuel pickup is rusted real bad. I pulled small screen from fuel pressure regulator and it was clogged with dirt and stuff real bad also. I image I should drop the tanks and clean them but does anyone have insight as to if I should replace all fuel lines and pickups as well?