You could always get some metal tube and fab a whole new line. I'm leaning toward the spliced line.
A spliced line would be the easy way out. I'm not sure if I want to invest in a bender and a flaring tool to make a hard line, but that is a good idea as I'm not sure if I like the idea of a rubber line on top of the engine.
Another question; here is a shot of what I assume is the fuel filter? Why two inlet lines?
That is the hot fuel system that has a return line. You can come off the carb side of that with a rubber hose and run that to the carb inlet. However, I had to buy an angled inlet adapter to get my factory air cleaner to sit down correctly.
Also, you need to check fuel pressure. Edelbrocks are great carbs, but they don't like more than about 6 psi of fuel pressure and you may have more with the electric pumps. If so install a fuel pressure regulator to drop it down to 5.5 psi.
My opinion is that Ford implemented that system because of vapor lock troubles, so why get rid of a cure to a known problem?
Just asking. If it works I have no issue keeping it. So far, I have not had what I feel are fuel delivery problems. The truck ran okay on it's maiden voyage to my house at 9000' from Denver. Somewhat gutless but I think that can be attributed to an internally leaking carb and lots of vacuum leaks. Or at least I hope so I'm looking forward to installing my new carb.