[Oldsguy]

You are talking about an MSD control box right? I has to be used with an after market distributor like one of theirs. Control boxes are used to fine tune the spark delivery; people that race their cars use them to compensate for altitude, air temperature, and other track conditions. Whether the use of a high voltage spark on an older car that is simply driven on the street is beneficial or not is a subject that is still disputed. Some people claim increased fuel economy, others increased horsepower but those claims are rarely backed up by scientific tests. I think I would be safe to say this at least, you won't have to change your points any longer if you put a system like that in, so I guess at the very least you would see easier maintenance in the future.


edit: as usual, my long and slow composition time has ended in a post that seems redundant. Oh well.