I was thinking that too, but why would it not happen without a load on the engine?
the simple answer is that more load puts more demand on the ign system & if it's going bad then even normal ign requirements cross that line & make it misfire. I certainly would not suggest buying new parts & guessing but if you have another dist/ECU in your stash I'd toss it in for a test as we're running out of ideas for what's going on so we might have to start swapping some parts. I would check rotor phasing & rotor tip to cap terminal clearance. Keep us updated
live every 24 hour block of time like it's your last day on earth
