6844268

wide open, ive had this for years, as it stands, the AC unit is not hooked up. everything was checked many times...the only thing i have not replaced was the harmonic bal. and i hear they can drift in the rubber if worn

6844268

what are the odds the ported switch needs replaced?

oldcutlass

Its not the switch that's making it ping. Double check your timing.

6844268

im in another forum looking at carb issues, timing has been covered. thanx