SS SPRINGS NON SS SHOCKS - POSSIBLE?

Not to highjack, but I just put 2800lb SS springs and Mopar long shocks on my car, the rear is very stiff...up and down...is that how its supposed to be? Just bc they are new? Also, the rear sits quite high, I hear that the springs will settle by about 1-1.5", is this true? Thanks!

Did you tighten all of the bolts with the wheels on the ground? Also the torque spec on the U bolt nuts is only 45 LB FT. Over torquing them will result in the rear suspension binding.