Just to throw a bit more confusion into the mix (When have I ever done that?)- - - - -Using one of the "no ballast resistor" ignition coils changes the entire overall resistance of the ignition circuit, along with the inductive reactance I mentioned before, which will change the capacitance required to assure complete dissipation of the primary voltage spike before the points close again, and also prevent material transfer from one contact point to the other.
Jerry

"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!