Wheel-hop
Good shocks are a pretty important aspect of any of the Bar type traction control methods.
The harder a car launches, the more control the suspension needs. On my Dart Sport race car, I had wheel-hop under certain conditions even with SS springs and a variety of shocks including Mopar Performance 4-speed race shocks and Competition Engineering adjustables. Never had a problem again after installing stiffer, adjustable shocks which, in this case, were single adjustable Rancho truck shocks. The springs "wrap" and "unwrap" causes wheel hop. Shocks, if stiff enough, dampen/control this action. Additionally, I always liked to keep one clamp on the rear of the spring and
allow the adjustable shock to control the spring action, including separation. You can have too much separation too quickly. I also ran a snubber with 1/2" -3/4" clearance more out of habit. It certainly didn't hurt.
The Ranchos I have on the rear of my Dart Sport & Aspen Wagon race only with SS springs are RS999116 single adjustable. Calvert also had their brand relabeled for them but I don't know if there was any difference.
The newest Ranchos are RS999116 but I don't know what they upgraded. The last time they added a "9", they went from RS9116 3-way to RS99116 9-way. They have different lengths in the part number grouping in the list below.
Research & measure for your application.
Rancho #'s & specs
L1 are the Mopar bushing ends - 5/8" hole & 1 5/16" wide.