[Bentwheelbob]

It sounds good on paper and I am completely wrong....

So after coming down from my post turkey and sweet potato high, and getting a good nights sleep., I broke out the heat gun and vacuum pump this morning. I was correct that the air inlet thermal vacuum sensor is normally closed, but both nipples on the bottom of the sensor are on the closed side. Pull a vacuum on one nipple of the sensor and it moves through the sensor and creates a vacuum on the other nipple as well. Put heat on the sensor and the sensor opens up on the top side of the sensor (that part on the interior of the air cleaner) and releases the vacuum. Once the vacuum releases it lets the flapper doors open. Those who said that the correct plumbing was as pictured below were correct.
I think...

BTW - the vacuum actuators on this air cleaner work perfect and hold vacuum, but show no sign of having been replaced unless NJSteve did his usual fine job.