As opposed to rpms increasing in every other car this is tried in. I'm guessing it's my brake booster or a vacuum leak of some kind. 1984 GSL. The brake booster is most likely the original. Did pads and rotors a year or so ago. Thanks!

 

Could be a vacuum leak in your brake booster.

 

it also could be the idle mixture, if its too lean, more air will make it bog. too rich, and more air will make it idle higher

 

This might be better answered in the 1st gen section. OP would you like for this thread to be moved?

 

Yes please move the thread. I recently replaced intake manifold gasket and one solenoid on the passenger of side of the carb did not survive and I have one vacuum hose that I cannot find where it goes car fires up no problem and gets to operating Temp.