The small hose attaches to the vacuum fitting in the top of intake runner #1, forward and to the driver's side of the carb.
From there, it goes to the thermal switch in the base of the air cleaner.
From the other side of that thermal switch it comes out to a 'T' fitting and then a hose goes from the other two sides of the 'T' to the thermal actuators to the snorkels.
I've attached a pic of the thermal switch.
Here is a listing with a pic of the bottom and the hoses, but the pic is in a format that won't load to this site:
https://musclecaraircleaners.com/pro...el-air-cleaner