I need to know what the difference between a 68 and later year fuel tank is? I have a 68 but I think that I have a later model tank. Is there a fuel return line on a 68? I can't find my manual, so thought I would ask here. I have an sb Olds in it now (it was all I had), and I need to run new lines front to back since the factory ones are on the wrong side for an Olds. Thanks. Tim
