Fuel system clarifications

[softballnrd27]

I just want to make sure that I have this 100% right and that I understand what is happening here. I stole this pic from either Glock or Menace(too many pages/pictures to remember) I am running just 1 tank so I won't need the switch but here it goes:


Once I get it past the filter/reg it goes up to the fuel rails in one end looped to the other side and then plugged (or a port for a gauge.) All the return gets handled by the filter/regulator correct? The return still needs to be high pressure hose correct? What is 5/16" equal to in AN? Is it -4?

[TR65]

Softball,

All the return gets handled by the filter/regulator. Just one line to the fuel rail.

I think the return could be low pressure but I ran the same AN line for it in my case.

a -6 AN is 6/16"=3/8"
a -4 AN is 4/16"=1/4"
a -3 AN is 3/16" etc.

The fuel lines need to be -6 I believe. (I don't think there is a -5 (5/16) as far as I know)

Here is a picture of my hook up. I ran 3/8" hard line the length of the frame and then -6 AN over to the engine. Works well.

TR