Thats the new version we gone make, one HV-part and one timerboard with outputs as much as you like.
It's nothing more then one output following by 12 ohters on time.
If you know when the first cilinder needs a spark, the 11 others gething (1 rotation / 12= msec) later the spark.
Under the plasticcover he is hiding 12 little coils, 12 capacitors and 12 SCR's.