I agree with the HEI route, save some time and headaches. One thing I can think of, there was a wire coming off the starter solenoid that retards the spark during the crank cycle to help it fire. I think it was light blue but might be wrong. Maybe someone else knows what wire I am talking about.
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.