On my 77 Wagoneer, it has a 360, 4 barrel, when I got it, it had the mechanical pump still on the engine, but disconnected, and a electric fuel pump just sitting in the engine compartment. Here's the deal, it has what looks like a return line fuel filter setup. I'm not sure if I hooked it up right or not. I took the electric pump off, put a new mechanical pump on and it's hooked up the 3/8th line from the tank, to the pump, goes into the fuel filter, than the other end of the filter one side goes to the carb, and the other to the return line to the tank. Is this correct???
Here is how the lines where hooked up when I got the vehicle.
So that's how I hooked it back up. But I don't think it's right.