Fuel lines

[BLACKRONIN22]

I am sure this is covered somewhere but I'm not sure where. I am bleeding off fuel pressure really fast and if I clamp down the line on the far right it holds pressure. My question is, is that the feed or return line? Thanks for the help.

 

[69RSCLONE]

The right line with the double clamp is pressure, middle is return and left with pinch clamps is the vapor /evap to the canister

 

[BLACKRONIN22]

Cool thanks.