Are you talking about the chip on the add-on board?

I was refering to the normal chip in the L8 to begin with, the one that contains the fuel table and ignition table.
I thought there was a dwell value in there, so figured that this would still have an effect after the addition of the daughter board?

If it does how you are saying and looks at the firing point and works backwords, then essentially its "hard coded" for that fiesta coil surely, as the mapper wont be able to change that equation to scale it for a different coil?