GMC Van

[ctille]

When did the return line from the carb start being used?
I understand it is meant to give more consistent psi to the carb
Anyway I swear a factory defect in my 75 GMC van (350)
had it not even connected.
The fuel tank had a return (not connecting to any steel lie to the pump)
Because the pump DOESN'T HAVE A RETURN
Just in and out
The guy I bought it from was always accusing people of syphoning his gas.
Plus you could always smell gas around the vehicle.