I seem to bring out the worst in any electronic ignition system. After walking a few times with failures on newer vehicles, I carried new ignition modules in the glove box and the necessary tools to change them (screwdriver).
Because of these experiences, I REMOVED the HEI from my performance street car and replaced it with points and condensor and they work fine to a 7000 RPM redline.
But go ahead and convert to the electronics. That means more original points and condensors left for me

But a "word to the wise":
If you convert to the popular "points elimination device", upgrade to an alternator at the same time. And if you have a Pertronix installed, and have "carburetor" issues; try putting back the points and condensor BEFORE you rebuild the carburetor.
The real reason for the invention of cell phones .........................to call the tow truck!!!

Jon.