carb cleaner trick for vacuum leaks
 

what should idle do when i spray around carb go up or down?

up and smoother.

Another interesting trick for finding vac leaks.

https://www.rx7club.com/showthread.p...t=carb+cleaner

Depends what you're spraying!

Carb cleaner will make idle drop if you're spraying it around the carb.

Jon

I would swear that idle rises when I hit the leaks. In any case, what you're listening for is a change in idle quality when you spray the area with a leak.