Good reading but totally off topic of the original question. Sounds like its more of the alignment between trigger wheel in relation to the rotor.
Well hey, look at this: http://www.junkyardgenius.com/igniti...phasing01.html
I don't know how things went from cam/crank timing to dizzy set up but it might give the OP one more thing to look for.
1986 CJ7, 4.2 w/4.0 head, TFI-HEI hybrid ignition, Clifford manifold w/Holley 390 w/cold air intake, OBA, 4.5" lift, Woody CV shaft and Tattons in front, 4.10 gears - lunchbox in front, Truetrac in the back, twin-sticked, blower upgrade for running topless, trying to keep it simple.
It's just a Jeep, and if you don't wheel it once in a while, it's not even that.