Originally Posted by T-bucket23
This is true of any ignition that uses a coil. As revs go up you have less time to build the field charge in the coil. The biggest issue with points is they become unstable at higher rpm and can bounce or float. The electronic distributors either use optical or hall effect sensors and they are just as stable at 8K rpm as the are at 800 rpm. Nothing mechanical to bounce around.
A good HEI is more than most street engines will require.
Years back i found a CDI diy kit with an output of 80,000volts that ran in conjunction with points ignition. I put twin kits on a Z900 Kawasaki which i drag raced. Problem was there was voltage going to the plugs sometimes but mostly it was jumping out at the frame and handlebars.