Hi Steve, I realise you probably have things sorted now but just wanted to let you know how I worked my fuel system in case you are still working it, so here goes.
I have the normal two tanks in the side joined by a -10 pipe at the rear, in my case both tanks have a -10 outlet at the lowest point at the rear. I run a -10 pipe from the right tank to a -10 tee at the back of the left tank. From the -10 tee at the back of the left tank I run a short -8 hose to a Facet Red Top which lifts fuel to a 1.5 litre swirl pot which is housed on the bulkhead on the left side through a -6 pipe. Fuel then gravity feeds to a Bosch 044 via a 55 micron hi flow filter, fuel is pumped from the Bosch 044, through a 10 micron filter canister and on to the fuel rail, through the fuel rail to the regulator which dumps excess fuel back into the swirl pot.
I did have some issues with cavitation into the Bosch 044 but solved that by increasing the size of the filter before the pump.
If I were ever to re work the system, I would build new tanks with trap doors that hold fuel in the rear portion of the tanks, approximately the last 150mm in each tank which I calculated to be about 6 litres each side. I would still run a -10 line from right to left. I would use a Walbro type pump in the trap portion of the left tank to feed a swirl pot, from there I would use another in tank pump, Bosch or Walbro. This would alleviate some pipe work and pretty much guarantee no cavitation.
