EFI return line

dgibby said
Looking for ideas for the return line for my sniper efi system. Was going to put a bulkhead fitting in the sender unit but seems like there is not enough room for one to fit. Thinking of drilling the tank next to the sending unit and putting a bulkhead there or buying a sender with a return but the return line is only 1/4 inch and it needs a 3/8 line. Maybe drill out the 1/4 line and solder in a 3/8 line? Thanks for the ideas.

I bought a 1/2 inch feed 1/4 inch return line sending unit, used a step drill to enlarge the 1/4" hole up to the 1/2" size and silver soldered a short piece of 1/2" metal line into the sending unit. The step drill left a small ridge on the opposite side of the hole, which aided in stabilizing the tube I installed. It works great, and you can do the same thing with 3/8" sending units.