The first thing I would do would be to tune up your vehicle. Check the plugs and re-gap or replace as necessary. Also check your psark plug wires, since you have 130K on them. Check ignition timing.

I'd also check things like fuel filters, etc.

Because of stuff resetting, I'd check the battery and the alternator output. If you have another vehicle (or a friend) with the same size battery, swap for a while and see if that affects the problem.

After that, see if you still have the intermittent problem.

1977 CJ-7, fiberglass body, AMC 360 w/ headers, DUI ignition, Edelbrock intake and Holley 4150 carb, TF999, Dana 300, 4.56 gears lockers, York air comp, 4" susp lift, 2" body lift, BFG 35" M-T tires, Megashifter, AGR pump & box, REP8000 winch.