As per Chris' reply, but to add, the add-on electronic ignition systems that retain the points for triggering (i.e. the maplin kit) still suffer from a lot of the points problems, i.e. the dwell is still controlled by the points etc. The only real advantage is that the main coil current switching is done by transistor rather than the points, so the points don't burn out as quickly and you can run a more powerful coil (lucas sports coil for instance).
The better solutions are the Lumenition optronic and magnetronic which do away with the points all together. These are good sytems that don't make too much of a mess of your engine bay.
Ultimately you want a system that gets rid of the distributor all together, but then your looking at serious money and very non-standard looking engine bay.
Edited By webmaster on 1193051138