Yeah I swapped in a civvy heater box and vacuum controller for the air direction valves. I used a slightly modified set of defrost vent heads from a 47 Chevy something I found on E-Bay. The only snag I hit in the whole ordeal was that the defrost door was hanging up on me, it ended up that I hadn't used enough of a spacer on the driver's side mounting screw. Once I got that solved everything works fine. I used a choke cable for the heat door pull and bypassed the blower speed resistor. Just make sure you wire it properly if you do that, you don't want any fires.