New Shock Absorbers for 1970 E-Body

Hi, I'm going to remove the rear air shocks from my 1970 Challenger and install new shocks. I've been reading about KYB Gas A Just shocks and they sound good. Their info says it would give extra performance than their Excel-G which would give original ride and handling. Has anyone used KYB Gas-A-Just shocks? If so do you like the ride and handling qualities?
Author: DY31970