I'll need to find a multi IO serial adapter then. The EPROM / ECU has a standard serial interface on the board I'm knocking up and "I know a person" who has the various pinouts for the existing ECU - so I reckon that's fairly eay (real time remapping of the engine geometry). What I'm struggling with (still, after all these years) is how to get the various temp sensors sorted - so yes, let me know which way you're going on this.
Oh yeah, forgot to mention - I'm learning how to use Windows. Hope you were sat down when you read that, Tim :-)
(Still hate it, mind)