EDIS4 on the left obviously but what are the others? They have a vacuum take off type thingy which the EDIS4 doesn't.

They have '89FB-12A297-BB' on them.



EDIS4 & ?

they are ignition control units, similar to the edis 4 but advance is contolled with the vac connection, you could use one to run a zetec for example instead of using a megajolt as all the spark control is built into that "esc" unit

ESC = Electronic Spark Control

According to Mr Haynes Manual there are several iterations of this system which seems to have been introduced to replace the older Inductive Discharge system.

So no good for running megajolt with then.... as I thought, but worth asking first!

have a u2u with big_wasa he makes up little units with them