If a stock point type distributor is completely overhauled- - - - -getting the shaft running true in bushings, making sure the cam lobes are exactly the same height and spacing, and getting the centrifugal and vacuum advance systems working correctly, about the only advantage to electronic ignition is the ability of the coil to generate very high secondary voltage. That is because points are limited to around 5 amps of current flow without burning, and solid state electronics can handle at least double that current. Points also have to be serviced more often. As long as the spark plugs are kept clean and properly gapped, the coil cannot generate more voltage than is required to jump the plug gap. A clean plug with a squared-off surface of the center electrode will jump the gap at around 8-10 KV. Even if the coil is capable of 50KV on open circuit, it will never make more voltage than the plugs need to fire.

Electronic ignition is useful- - - - -if the car owner is too lazy to do routine maintenance. It was developed in the 1970s when Big Brother decreed that emission-related systems had to run at least 50K mikes without being serviced.
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!