Read this for figuring out vacuum through KPA.

Otherwise a aeroforce scangauge can read "in/hgs" on the screen.

You'll likey only see 17-19in/hgs with that mild cam/head work. A factory car will pull -20in/hgs no problem at idle.

Watch your fuel trims too if the car runs long enough, if they go way positive you have a vacuum leak.

http://www.hptuners.com/forum/showth...reading+vacuum