2 Vacuum Advance Questions

Get a spray bottle with slightly soapy water and squirt around the area when it is running. Also a safe way to track down vacuum leaks all over the engine. Using carb spray and other flammables on the engine is just plain silly. All you are doing is making a change in the rpms when you find the leak. Carb spray, the rpm's go up. Water, the rpms go down. Same result, different method. Just that one is safer than the other.