fuel line and sender unit questions

[Duran]

Hi All

as you already know i m working on the charger and the issue i have now as i make my way around the car is the Fuel system.

i ve noticed that there are various sizes when it comes to sender unit and fuel lines

1/4, 3/8, 5/16

can anyone tell me what size went with what combo from the factory or what is the better application and why (440 auto)

[Ghoste]

The little guy is a return line, the big one was used for 440 and Hemi and the one in the middle went with the rest.

[green69rt]

If you have torque boxes then the pre-bent lines don't allow for them, at least mine didn't.  It required a cut and splice to get around them.