Carb on my 20r was missing pieces etc so I picked up a 22r, good running carb. I used the 20r manifold with a lce adaptor plate. I desmogged the thing at the same time.
So my question, the old carb/ fuel pump had 2 fuel lines, the new carb/ fuel pump has 3. How am I supposed to hook these lines up?

Also, I haven't gotten rid of the charcoal canister yet. It the truck will run happy without it I'm game!

 

One is the inlet (from the tank), one is the outlet (to the carb) and one is the return (to the tank)

 

Thank you. I had tucked one of the lines away just a little to well while I was taking off manifold. Finally found it.