Slant Six mpg's?

I would gladly take some of your guys mileage.
Im only getting 7 mpg in town. Thats without idleing any. Easy on pedal to. Just replaced distributor cap and plugs. New air filter and fuel filter. I dont know whats wrong with it.
its a 73 swinger with 225 slant 6 automatic. All stock.

Better check for holes in your gas tank.

I had a '67 Dodge Cornet 4 door with a slant auto, all stock except I swapped to electronic ignition. Best ever was 22 MPG all highway driving. Not bad for a big old square box.