I'm going to try the stuck ring solutions just to see if I can limp along for the summer.
This is just a plain old vac/pressure gauge. I just know it is at 25, probably because my idle is so high. When I was able to get it down to 775 rpm it was closer to 20.
Ok that might explain the high vacuum number... 20-21" makes sense for a normal, stock-engine idle, with no vacuum leaks and decent intake valve seating.
If you want to try the Rislone-dribbled-slowly-down-the-carb at a 2000 RPM idle trick to try to help the rings, the neighborhood kids will love you for smoking up the whole area LOL
