My Jeep just started Missing Yesterday. At idle it has a Good drop in RPM only at idle not under acceleration I had to turn up the idle to keep it from trying to die. Did plugs gas filter air filter today and the same thing. 1980 cj 258 auto any ideas. Thanks David
have you checked the timing?
are you sure it's the ignition and not fuel?
possibly a vacuum leak also.
i don't know how much smog crap you have but my 87 has plenty of vacuum lines which could cause it to run rough if bad.
I have the best idea for you to check. It was the fix for my baby. You can surf to it, or you can just click this little link to a part of www.off-road.com website .. in the Jeep section there is a piece about the stock carbs.