You are running the High Vibration Blaster Coil PN 8222 and not one of their
oil filled units right? The literature suggests that the MSD
oil filled coils should not be mounted sideways (thus my previous post was not entirely correct
). Evidently in the
oil filled units there is a small air bubble at the top of the coil. That air bubble can move over the windings and expose them. That causes them to short internally.