Still working on my Rodchester Quad. Have a Edlebrock fuel pump and I
found a hose not hooked up to anything,could this be the vapor return line because the fuel pump only has a in and out or does it go somewhere else.
Thanks
Al

 

I know the EFI has a pressure line, return line, vent line and EVAP canister line from the tank. The vent line doesnt go past the rear end so only 3 lines come to the front of the car. pressure line is 3/8" the return line is 5/16" and the EVAP line is 5/16". Im not totally sure what the carb setup is but it should be close to the EFI stuff.

 

the stock block mounted fuel pump was a return style. Should be two lines going along the right fenderwell. The smaller is the return to the tank.

I'd recommend getting a return style pump. The return was designed to help prevent vapor lock and fuel boiling issues.