Return fuel line
 

HELP!
I have a 360cu Dodge engine in my Dart with an Edelbrock 750 carb and was wondering how important it is to have a fuel/vapor return line to the tank? I'm getting lots of bubbles in the pump and filter and the engine bogs down a little upon rapid acceleration.

Did not know they had fuel return in 1970 Dodge Darts????

Anyway... I would guess you have a Loose or leaking hose somewhere down stream of the fuel pump to cause those bubbles....
Just my 2 cents

The only reason you might need a return line is if you have converted to an electric fuel pump

If there are bubles in the fuel you have a leak...a seald fuel system is important too keep vapor locking , I had the same issue last summer found a vent line with a crack in it.
my return line works off of the fuel filter some run the return off the fuel pump
But as racerhog says u may not have a return on ur duster