I used the VintageAir Gen 5 in car kit and custom fit the underhood components in both my '70 E-Body and '68 A-Body. The '70 used the Bouchillion under alternator kit and needed the belts rerouted to get better pulley wrap on the compressor, but no big deal. The '68 used the Magnum Serpintine belt set-up with the stock compressor location. In both cases, I opted for a larger condenser to better fill the opening.