When re-working the loom under the plenum I re-thought the fuel line routes & I think this is an improved layout for the return from the fuel pressure regulator to the swirl pot.
This time it goes along the outside diagonal chassis rail, I think this keeps things tidier and clear of the steering column:
The diagonal round chassis rail under the plenum takes the wiring & clutch cable.
The diagonal chassis rail on the side panel takes the fuel return & accelerator cable.