Received some small parts that allowed me to finish up the fuel system. It is now complete from the pump inside the tank to the engine compartment. I’m using all 3/8 line, pressure and return, which will be plenty for the 427 (stock Fox 5.0 Mustang is 5/8 pressure, 1/4 return). The hard lines are nickel-copper (Nicopp) so they will never rust and are easy to form. All fittings are AN and the clamps are MS. Good aviation stuff. Nothing here is premade… I did all the bending, flaring, hose assembly and routing. System has been pressure tested to 125 psi (fuel system runs at 52psi) with no leaks.
The ends in the engine compartment are waiting until the engine is installed to build and install the final hoses.