Have done a forum search, but nothing really returned my specific questions.

Engine: 4AGE, converted to 40mm Mikuni/Solex carbs
Fuel pump: 4-7 psi Facet pump
Car has an ADM fuel tank, and I'm unsure of the internals of it in terms of operation.


I've got a couple of questions in regards to setting up my fuel system.

Do I need to run another internal pump in the ADM tank, or is the Facet external fine as the sole pump for application?

When running a fuel pressure regulator, do I need a bypass style in order to retain the return line? How important is this return line?
What regulators are out there for a 3-5 psi pressure range? Speco have a 1-6psi but no return, similar to a Holley. I'm cautious of buying a Sard or Tomei 1-8psi as there are so many fakes on the market. Similar, I wanted to run a gauge on the FPR, as it's important for the carbs to have an accurate fuel pressure.

Also, how are people typically wiring up their fuel pumps? If wired to ignition, it will only pump when the car is on. However if the engine stalls, the pump will continue if the ignition is on.

Thank you in advance!