Heat stove and heat riser question

[71CHEVYSHORTBED402]

1971 402 at least had a stove and pipe. Expedites carb. air temperature, part of the cold start system. Some notes:

The thermostatically controlled air cleaner operations are found in the 1971 service manual page areas 6M-19. The thermal sensor and diaphragm motor work with the heat stove and pipe to control carburetor air temperature. The assembly is designed to maintain carburetor air temperature passed through the air cleaner’s snorkel @ 100F or more. The thermostatic air cleaner is tested with under-hood temperatures below 85F:

• With engine off -The snorkel’s damper door should be opened.
• With engine running, vacuum applied, and air temperature below 85F - The snorkel’s damper door should be closed.
• With engine on, vacuum applied, and air temperature above 85F - The snorkel’s damper door begins to open @ 85F.