On my (low powered) ‘73 Duster I went with springs and things 1 inch over bent units. These were very much a capable HD spring. Road, drove and handled very well. Launched straight as an arrow. Very pleased. The power was under 400hp. Just a good running toy.

On my ‘70 Duster, I am switching from springs I had in my E body. There the 3600lbs. 460/461 springs. Good in the E body, not so good in the A body. Which is getting lightened. I now have the 863/864 - 2800lbs. springs in there. Yet to test.