I have the GM sensor that has the SAE fuel fittings. I tried searching but am having issues finding a fuel fitting-barb in order to put it inline with the stock return.

 

I think it's those quick disconnect (pushlock) to male AN, then barb.

 

You want a 3/8" EFI quick disconnect fitting you can get them at your local parts store it's made by dorman 800-085.5

Connector- Fuel Line | 5 Fuel Line Quick Connectors- Adapts 3/8 In. Steel To 5/16 In Nylon Tubing | 800-085.5 | Dorman Products

 

You don't need any special fittings. Just cut the return line and put it in there and clamp the hose on each side.

 

That's it. Thanks man!

 

tru that lol.

 

Yep, those are the ones that I used. Dorman 3/8 in. steel to 5/16 in. nylon tubing fuel line quick connector 800-085 - Read Reviews on Dorman #800-085

The barb fitting is a bit "safer" to use than just sliding the hose over the EFI fitting, but our fuel lines pre-rail don't carry much pressure so you'd likely not have a problem doing it that way.

 

I will be doing this. lol. My flexfuel sensor just came in with connectors.