Need help figuring out my fuel lines on my 1972 suburban

[chuchito]

Does anyone know how the fuel lines are supposed to be routed from the fuel pump to the rear gas tank on a 1972 suburban? My gas tank was removed to install a new one by a shop an now I'm trying to figure out how to install the new one since they just left it.

I don't think that the engine on my burb is the original after researching the suffix code on the engine block(TJC). It currently has a fuel pump with 3 outlets. 1 is to go to the carb and the other two go to the back. Does anyone know where those two lines that go to the back connect to? How are they supposed to be attached to the gas tank( which fittings on the gas tank go to what?). A diagram would be great.

I see diagrams for the trucks but none for the suburban.