you need manifold vacuum. Either on one of the intake runners or at the base of the carb.
If you're talking about the vacuum advance for the 216/235 distributor, then yes it has the vacuum advance, which runs off a carburetor connection close to the idle adjustment screw.
Those are thermoswitches. They open and close vacuum supply to the egr valve and the distributor advance.
The distributor vacuum advance on a 400 Pontiac is typically located on the side of the distributor housing. It is connected to a vacuum source, usually from the carburetor, which helps adjust the ignition timing based on engine load. This advance mechanism can improve performance and fuel efficiency by optimizing timing under various driving conditions. Always refer to a service manual for specific details related to your vehicle's year and model.
To route the vacuum lines for a 4-barrel Quadrajet carburetor, first identify the vacuum ports: one for the distributor advance, one for the power brake booster, and possibly others for accessories. Connect the port for the distributor advance to a manifold vacuum source, usually located on the carburetor base. The power brake booster should also connect to a manifold vacuum source for optimal performance. Ensure all connections are secure and that the lines are routed away from heat sources to prevent damage.
engine loads
Could be vacuum module in distributor or other vacuum
Remove the distributor cap. Remove the hose to the vacuum advance. Remove the two screws holding the vacuum advance on. Install in reverse order.
pull the hose off the vacuum advance and some of them have a set screw inside the hole.
at the distributor. mechanical type
Detach the vacuum hose from the vacuum advance unit. Remove the distributor cap and unscrew the two mounting screws. Pull the rotor off the shaft and remove those two mounting screws as well. Unscrew the two advance unit mounting screws and remove the unit from the distributor.
It won't. That vacuum line tells the distributor When to advance the timing. There isn't enough vacuum loss to stall an engine.
If you have a manual transmission and a centrifugal advance distributor, you don't have any. If you have vacuum advance on your distributor, there's one vacuum hose running from the side of the carb to the distributor. If you have an automatic transmission, you've got a hose from the intake manifold to the control valve.