I have been researching using Ridetech 58-64 Impala coilover stuff on my 72, but they just posted these up on their site today:
http://www.ridetech.com/store/1963-1967-c2-corvette-coilover-system.html
Phil
http://www.ridetech.com/store/1963-1967-c2-corvette-coilover-system.html
Phil