FBO's black HEI ignition box

Brain surgeon.
The business end of a mag [ or any ign system ] is the spark current & energy output, not the primary current.
Millers 4 amp mag produces 58mA of spark current & 253 mJ of energy.

The 12 mag that he is trying to discredit produces 141mA [ converted from peak to RMS ] of sec current & 300 mJ of energy. Spark duration is 26* of crank rotation compared to 17* for Miller's mag.

Also, RMS is NOT average current/voltage in electrical parlance. Average is 0.636 of peak, RMS is 0.707 of peak.

One wonders if Miller gets this wrong, what else has he got wrong.
Read Post #125 & learn....