I saw a propane kit yesterday at Jalopy Jungle in Nampa on a 1978 chevy truck. The motor was gone but it looked like most of the kit was just laying in the engine compartment and it had a huge tank in the bed of the truck. It also had a remote fill on the side of the bed. If anyones interested. I am not sure if was 100% complete. In the engine compartment there was an airfilter that was offset and looks like it bolted to the top of a carb then the hoses ran to a gadget on the wheel well.