RX-7 cacuum leak
 

I just bought a 1987 RX-7 non-turbo, and i know it has a vacuum leak, i'm just having trouble finding where. Is there a certain area where it's more common to get a leak than other places? The car is in very good shape for 20 yrs old, i've never had any problems with the vacuum leak. It's just something i want to take care of before something bad could happen. The car doesn't leak oil or gas, there aren't any operational problems with the car. Anyone have any pointers?

shot the intake area with carb cleaner ner that intake and when the idle changes thats the area of the leak

thanks man, i still have a lot to learn about rx-7s so thanks a lot for the help