My main issue with the theoretical handling line is the formula is never clearly stated in either book. And working backwards from some of the suggested setups in the oval track book doesn't give consistent results. My main issue is if the wheel rates of springs are truly supposed to be doubled. No one spells it out in either book.

Regardless, the theory is sound.

But changing roll centers, etc, would change the line. And the original line was developed for circle track mopar B bodies if I remember correctly. So maybe the line is a little different for an A body.

So really, if one wants to go all the way, you need a complete chassis setup program (or to go hire someone like Ron Sutton to do it for you).