What do I do with the return fuel line?

[karmannghia60]

Morning all
On a 1970 911T and my fuel pump is at the rear and has no return line provision. Only in and out
As far as I can tell from the parts diagram, the return fuel line goes to the bent pipe connection on the tank which is #7 on the diagram
#3 is the line to the pump

So in my case where I have no return line, what do I do with #7??

Thank you

[karmannghia60]

And pic of the pump

[911pcars]

Return line not needed with carbs. At the tank, plug the return line port. However, needed with MFI.

S