It hooks to a vacuum port on the intake manifold behind the carb.
There is no transmission vacuum hose. That is a vent hose.
Check for a vacuum module on the transmission. If you see a vacuum line between the transmission and engine, disconnect the line and look for transmission fluid inside the line. If you see transmission fluid in the line, replace the vacuum module. It probably has a split or damaged diaphragm inside.
The transmission is electronically controlled
Be sure the vacuum supply line from the engine to the transmission vacuum modulator is not disconnected.
It depends on which distributor and transmission you have. The stock distributor has one vacuum line going to it. An autostick transmission has one line. If you have a manual transmission and a Bosch 009 distributor like most people do, you have no vacuum lines.
That transmission does not have a modulator valve that makes it shift it is all computor controlled. Therefore it don't have a vacuum line on it anywhere. it does have a small rubber line on it that is a VENT hose.
the line is connected to the carburettor if you have one or to the intake manifold after the throttle valve. The purpose is to connect intake vacuum to the booster.
NO. That year transmission is electronic controlled. NO vacuum source needed.