hi Paul,
EA 81 in Foxcon Terrier.
changed system 15 months ago to Foxcon's coil on plug system.
e.g. Foxcon modify distributor, no points no weights no moving parts except shaft.
small brain box to mount, dual system, no advance or retard, Starting procedure, push button start , engine rotating then switch ignition on.
timing set 28 degrees. back up battery recommended. no problems so far.
simple system, comes wired up with approx 3 wire to connect.
i had trouble with tacho pickup and ended up with tacho pulse off alternator.
tidies up a lot of wiring. Cost $1000.00 complete.