After one set of plugs/points/leads/cap/rotor, 2 distributors, 3 electronic ignition modules, 4 coils...5 goooooold rings!!! Oops. The combination of ignition problems and the festive season got to me there.

Installation of the EDIS system wasn't exactly a snap; 3 or 4 hours careful work would better describe it.

But turn the key and magic! Even idle, positive pedal and absolutely no pinging!