1930 Sport Coupe 11 MPG, backfire when turned off

[30 Closed Cab PU]

Use google maps to verify your speedometer is accurate. If the odometer off, your mileage would be off the same percentage. My A only gets 12-14 mpg, fresh motor standard head, 3.54 rear end, 16 inch tires, no Mitchell/etc, spark plugs read good, running a zenith.



If the plugs read good, and motor is OK, not much you can do with what you have.