I'm running a DSE subframe and Chasisworks G-Link canted 4link rear with custom AFCO coilovers at all four corners. 18x10 275 front and 18x12 335 rear with Corvette C6 Z06 brakes and Moser 9" floater rear end. Motivation comes from a 383 SBC and T56 Magnum. I think my 68 would come much closer than you might think to your viper in terms of handling.
