superstock springs rear clamps?
Bad Dart is telling you right.
you can also dial in how much of each you get.
no clamps will be most rise/ hit tire the hardest/ suspension react the quickest.
if thats too much then start clamping leafs closest to the axle first, and work your way towards the shackle as needed until you get the best performance.
from my experience most footbrake cars benefit the most from having the rear clamps fully removed. some really fast footbrake cars have to add clamps.
cars that transbrake or 4 speed guys usually need clamps to ease the hit.
thats not law or anything, thats just what I've seen as a general rule.