Well the car had been started a few times while sitting in the garage for the gear change then as soon as I get the car back on its wheels...no spark....of course. DAM. No spark when it`s cranking but as soon as I turn the ignition off, I can feel a bump from I guess it firing? It`s a 69 dart that I rewired for electronic ignition and charging. It`s been working fine for a couple years now. I swapped out the coil, ECU and regulator, checked the ballast resister, what am I missing...well the pick up in the distributor is newer but that I haven`t done anything with yet. Any suggestions?