323 355 or 373 gears??

My car has a 25.4" tire and 3.91's and I feel it's too much gear. The engine is screaming at 70 mph but to be fair I sold a Challenger T/A 392 with an 8 speed auto to buy my Dart with a 3 speed auto so it will take some getting used to.

By contrast, it's not enough tire.