My old '69 Dart was a simple backhalf car with ladder bars and stock front suspension.
It had more motor than your car, but for what it is worth. I was doing 1.2x sixty foot times (torqueflite), and running low 9 seconds (5.80's 1/8).
I really liked when I changed the upper control arms to get some caster in the steering. It was about zero before, and with 3 degrees the car went straighter, did a more stable burnout, etc.

That car had 0.87" torsion bars (with a big block engine) and they worked good.
Now at my power level I was limiting travel to control the wheel stands...