vent line on 69 charger? where is it

[383me]

got me a new project charger atempting to put in a new gas tank and sending unit,, i see the main line hook up for the sending unit to the fuel pump line? but i do not see a return line for the small tube on the sending unit? am i missing something? im new to the b bodys and have a lot of wrinch time on the a bodys and figured its the same , but i guess not,
any help plz thanks

[y3chargerrt]

The return line was only on 3/8" sending units.

[TylerCharger69]

The vent tube however runs along the fuel filler neck through the trunk  and past the floor pan  where it vents into the atmosphere!!!

[maxwellwedge]

Sounds like you have a 3/8" sending unit that also uses a return line for a fuel vapor seperator up by the fuel pump. If you don't have two lines from the rear of the car to the front you can plug the smaller nipple on the sending unit. The 3/8" sender and the 5/16" steel fuel line mis-match is common on all 69 440 B-Bodies so that's not a problem.

[TylerCharger69]

Which brings me to a question....Not to hijack the topic so please forgive me,  but that vent tube....would it be feasible to plumb that vent tube up to the engine compartment and into the air cleaner?  Or should it go to a canister first??

[hemigeno]

would it be feasible to plumb that vent tube up to the engine compartment and into the air cleaner?  Or should it go to a canister first??

Why bother?  Seems like a lot of trouble for limited (if any) "return" IMHO.

[TylerCharger69]

I dunno  just to vent the vapors into the carb??