FBO's black HEI ignition box

Well genius, I do do research. You should try it sometime & you might get something right for a change.....
You believe MSD numbers like 44 amps for the mag, but not other MSD numbers when it doesn't suit you.
And I suppose you are going to tell us the Mag 20 'makes' [ your word ] 20 amps. And as per usual you would be 10000000000% wrong. It doesn't 'make' 20 amps, it consumes 20 amps of primary current.
It's secondary current, which is what the plug tip might might not see due to losses etc in the cable is 300 mA, faaaaaaaaaaar less than the coils I quoted & the same as the cheap/popular MSD 8207 coil.

The spark duration is rpm dependent & gets less as rpm increases. It is about 71milli sec @
6000 rpm.