fuel return line

Since I have zero intention of ever racing NHRA I used 3/8 nylon 12 EFI line for both with a restrictor in the return to give me the pressure my carb needs so I don't need to run a regulator.
I just put a gauge on the supply side and drilled the restrictor until I had 6psi at the supply side.
Removed the gauge and done.

Just an idea.