[PANAVIA]

Caustic, -- reducing the complexity of the fuel system , removing the electrical pump and having nice clean lines may be a long term reliability proponent.

the fuel starvation issue for some reason sounds like vapor lock or bad angle causing air to leach back into the system. --

the other point I would make is that fuel line should be a cool as possible, using good quality insulation where possible and locating the fuel line as far away from moving/ hot components. (normal no biggie stuff)

--Steve