[Aussie Mike]

Yes the heat into the swirl pot is one of my concerns. I guess I could go with my earlier plan of fitting the swirl pot and pumps in the rear wheel arch.

I like the idea of low pressure lines and fittings running along the chassis and high pressure lines being a really short run from the pump/regulator to the injector rails. Minimal loss of pressure/flow that way.

Bevan,

You could use an electric pump to feed the swirl pot and have a return line from the pot to the tank. Have the Hillborn pump take fuel from the swirl pot and return it to the swirl pot and you'll never run out of fuel.

The electic pump will be bringing cool fuel from the tank all the time and it has the whole run up the car in the fuel line to cool it too. That should keep the fuel tems in the swirl pot down regardless of the fuel coming back from the Hillborn pump. Engine bay heat would probably heat the fuel in the swirl pot more than returned fuel.

Cheers