Hi Patrick,
according to Mark, if you don't use a swirl pot, you get fuel starvation when you go round a corner and all the fuel moves to one side of the tank.
( I took his word for it and ordered both pumps and swirl pot from Marlin.)
You'll need a low pressure pump at the back of the car to pump the fuel from the tank up to the swirl pot mounted next to the battery at the front. You then need a high pressure pump from the swirl pot to the engine EFI. The return pipe from the EFI fuel rail goes back to the swirl pot and the return from the swirl pot goes back to the tank.
The swirl pot keeps a constant fuel supply to the engine. It's actually just a small square tank with four connections. I'll send you a picture to your email address.
best regards
Peter
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