So, while the under side of the body was sitting and drying (after shooting Lizardskin and black paint), in the meantime, I pulled all the old stock heater crap and air “boxes” off the firewall (must’ve taken off 200 pounds of metal and at least 11 miles of ancient, rotten rubber heater hose) simply cuz I wanted a clean, flat firewall…and, with the plan of adding heat/air conditioning/defrost via under-dash Vintage Air…all that crap was just so much extra weight…and……in the way.