Carb recommendation 440

Nothing wrong with a 4.10 gear if you can fit a tall enough tire under the car. I have 3.73 gear with a 275/60/15. I run 2600 rpm on the highway at 65 mph. With 4.10 that would be around 3200 rpm. A 440 does not equal gas mileage in any shape or form. lol Maybe just sell the motor complete and try to find a 360, or if you want a big block build a stock 383 still fun but better for what you seem to want to do?