AZ28 (7/30/2008)
I believe this is sorted out?
The point set used needs to match the distributor/point plate (early style - or late). Early, the point set base is "straight" - and the late is "curved".
Using the original six volt coil should cut back the current load on the points - I thought I once heard that the six volt system didn't use a ballast resistor? Makes logical sense for that to be so.
Dielectric strength of the "condensor" doesn't change so that should be able to go either way (six or twelve).
Regarding the lack of ballast resistor on 6 volt system: it may be correct or not. My '54 Ford tractor 6 volt systme came with ballast resistor. Maybe it was not necessary, but maybe it was. Needless to say the 54 is 12 volt now.