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Hello, my name is ***** ***** I am a professional here at Just Answer. I have noticed that your question was not getting a response and thought I would see if you still need help with this.I apologize for the delay and I hope I can still assist you with this here.This engine will run just fine if you disconnect all of the emissions . Find a Ported vacuum source on the carb (no vacuum at idle) and connect your vacuum advance to it. Plug any manifold vacuum sources off including the large port on the bottom from of the front side of the carb and if the carb is not having any issues it should run just fine.
The one on the on the side of the carb you have marked in red should be ported vacuum and you can verify that by placing your finger over it with the engine at idle and there should be no vacuum, all of the rest of them need to be plug off so there are no vacuum leaks.
If there are any large vacuum port like the one under the front of the carb still open it will not idle. You need to make sure all vacuum source including any on the intake are plugged off. The only one you need is vacuum to the booster.
You do not need to plug the EGR vacuum line plugged in and if by chance you did and it was getting engine running vacuum it would open it and cause a hugh vacuum leak. Leave the EGR valve unplugged and also make sure its not stuck open. This engine will run just fine with vacuum advance . Nothing else needs to be connected , just make sure all open vacuum sources are capped off.
Unplug the vacuum supply line to the EGR and cap the lin off. If you sure the valve is seated (closed) nothing needs to be done to the vacuum port on it. It will not open with the vacuum line removed and should stay in the closed postilion.