Looking for information, diagrams, etc displaying relationship of crank pulses and piston / cylinder position. System provides four pulses every 120 degrees for total of 12. Odds are beginning and end of each pulse train coincides with TDC of paired cylinders, but how closely?

I know, MB/Chryco hated to release anything technical to the masses.

Here's the only thing I've found so far...


Anyone know of a source for similar info?