JJ: The 7037202 is an air pump carb. Most generally it is found in California. The missing vacuum tube is still a question that I don't have the answer to. But, the first picture that you show of the driver's side of the carb linkage looks correct, except for that small metal tab that is screwed to the linkage. Those are generally used for a kick down switch for a turbo 400 trans. The carb itself is listed for a 327and 350 c.i. 67 engine. So, it appears that someone has added the kick down metal tab on the linkage. As far as the missing vacuum tube is concerned, I would check to see if the carb has access to vacuum at that position. If it is not in service I would leave it alone. If it is connected to a hole or vacuum source, I would install a tube and cap it with a rubber cap or use it. Thanks, billy2