How would you build a low 10’s street car

My 73 dart had a 93 pump gas 440 that you could drive on the street any time you wanted, except in the rain. Lol with the wrong torque converter and not much tuning, the car would run 10.60 in the 1/4 . That was also with a race weight of 3520 pounds. My friend that weights 100 pounds less than I do ran a few 10.49 in the 1/4. Those passes was with 4.30 gears and M/T 275/60/15 ET street radials. I think with the right converter, 4.10 gears and some tuning, I don't see why the car couldn't of ran some 10.20 or better. I am not sure what the fuel mileage was, never checked it. Lol