I don't know much at all about 220's
Or 122-130's set up for racing.
You have to ask the 120 racers that question.

In fact in the dirt on the 145 the rear bar feels fine,
it keeps a nice balance,the car rides a hard edge,
With 165-15's,but on the street it pushes.
I also have an Addco rear bar that attaches to the lower
rear perches,and is U bolted to the axle.
No hacking the body and direct acting so to speak.
I am wondering how that will play out with the long arm
140 trailing set up,in combination with the A arm front.

Speaking of A arms guess what the latest and greatest
weight saving, $et up is for Porsche$ I$ ??
You guessed it , 'A' arms.
Mc Pherson Whats?
Ken
--
69-145-S ; 71-145-S ; 72-145-E ; 72-1800-ES ; 87-245-DL