Top front passenger side is full manifold vacuum for the choke pull-off.

When and where is it? I would like to go but it will just be to look since mine is not done yet. I'm still working on the interior. Notice only one seat in the picture. Thanks for the reply, that outlet on my carb is were my vacume advance is currently connected. According to all my books that looks like the correct location.

June 6th and 7th at the Riverwind Casino. I plan to go down that Saturday morning, pick up my son in Moore, and just go see the cars and network a little bit. I don't plan on participating in the judging event, so I probably won't drive the shark because of that. But I will be in the C4.

The chock pull-off comes of just below the one on the top corner about a 1/2 inch and it is angled toword the vacume pot. It was connected when I got it back from being rebuilt. The carb guy said the top corner was for the vacume advance. It has a tube coming from the distributor and when it gets to the front of the carb it curves up and connects with a piece of hose about 3 inches long. I've read about wanting manifold vacume for your advance and wondered if this was or not.

Yes it is an automatic, I did notice on Q-jet numbers the last # is even or odd for auto or 4speed. It does have the correct # for auto. My modulator vac comes off a tee on the manifold between the distributor and the carb. Passenger side to modulator and driver side to vacume canister and accessories.

Does your carb should look like (similar) this? KOPBET2008-05-22 19:09:09

Mine has a straight tube coming out above the one for the choke pull-off. other than that it looks the same.

Can you post the numbers on the carb or pics?