The height difference ( camber in my earlier post ) - 002/003 will make the car lower since it has less arch due to the thicker main leaf .

Like my earlier post - 3100 lb car with a 4 speed went 10 teens in 1971 on 12" tire. And the car had no where near 50/50 weight distribution.

Ride quality - you need to buy and drive a C Body for that.