At first I would die no fire replace coil.
distributor.plugs wires computer working harness
know it will misfire tach goes crazy .turn off
ignition restart runs fine.. Helppp
When the tack jumps around usually a bad ground wire. Check and clean all ground wires. May also have some bad spark plug wires, or a bad connection with the ignition wires. Make sure there are no breaks in the ignition wiring in the insulation for bare wire to be touching ground.
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