Do I need to re-jet my Thermoquad?

Bill,
Post #12 is correct. Yes, don't drive it, just do the idle test.
This is a quote from D.Vizard. It is about idle timing, but in a carb book, which is something to think about....
' The optimum idle advance is typically about 35-40* for a short cammed street engine & though not commonly realized as much as 50* for a street/strip engine.'