Missing air cleaner parts and connections

The air cleaner part is the cold start flap, it closes to route air from the lower intake hose thst goes to your heat source. The connection i think goes to a multi-tap vacuum switch into the water jacket. The hot water opens the vacuum source to the flapper to let the fresh air in after warm up or something like that. Emission stuff had an evap shutter at the same place but it didnt have a lower air entry. The vacuum would open the shutter for run, but close it on shutdown so your carb bowls woudnt dry out into the atmosphere. They work! Neither is critical.