Fuel system question

[Unclesams_SVO]

I am completely redoing the fuel system in my car and updating everything to 6an lines. I am doing a full wire tuck as well so I want to keep the engine bay as clean as possible.

My question is how to setup the remove fuel pressure regulator on the car, a return or deadhead setup?

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what are the benefits/drawbacks of each one? I am leaning towards a dead head as that will keep things cleaner and only have one fuel line going to the engine.

Here is a photo of what I am working with.

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[Mike S]

I think the top diagram will insure the same pressure at all injectors. On a boosted application, it is important to not have a lean cylinder to avoid grenading the piston. Maybe someone has done some testing on this topic on youtube?