Today was another example of things done "out-of-order" in my opinion. Fuel lines. You should plan to run all the fuel lines first before the rear axle assembly goes it. It's much easier that way.
In this case, I have to mount the external electric fuel pump/filters for the fuel injection. Still not sure where I can mount it, I wanted the rear end in place so I can see what my options are. Also right now the entire fuel system is at the engine builders so he can run the fuel injection of his dyno.
I've modified a stock sending unit to have a 3/8 out main line and a 5/16 return line. I plan to run two pre bent main fuel lines 3/8 & 5/16 and interrupt them where I have to for the pump etc...