74 Duster 408 Daily Drivability with 3.73 Gears Vs Stock 3.21 Question.

TimS said
I fall under the highway/street, mostly highway scenerio and why I'm going back to the original 3.21SG and removing the 3.73SG in the 8 1/4.

Match that gearing change with a high-quality torque converter, and never look back.