charcoal canister?

Does anyone know those or have pictures of how they run?

Thank you.

Not sure exactly how they run but here is a picture (not my car) I have that kind of shows the routing. The center fitting goes to the vapor line (back to the tank). The "purge" would go to the air cleaner IIRC, and the "carb bowl" goes to the bowl vent. Maybe somebody here will chime in with better pictures/information but here's a start!