[ICCARS]

I run an M800 in my GT40 and there is no ignition expander in there but I am running Hyundai coils banked together, so four sets of (2) coil out puts and then the Motec fires in a sequential order when the Sync/Ref sensors are correlated, and it is set up as a wasted spark so will obviously fire every 180deg of rotation..
So 4 outputs are sufficient i.e. fire 1,6 // 3,5 // 7,4 // 2,8 for a windsor set up
Hope that makes sense.
Also I could send you some base maps if you are interested, I have a few of them saved in my laptop.

Wil