I think you will find the system used a 16F628A pic chip and it never really ever worked successfully.

It was a good idea basically and the supporting software to upgrade the curve worked nicely.

Connect all but the power section and all worked beautifully.

Connect the power section and a spark plug and down it would go.

Many tried and contributed a lot but there was a basic flaw somewhere in the software(as far as anyone could make out) for which the source was never released.

Apparently written by a third party somewhere (anon).

Problem most had was the chip would lock up, sometimes the program would become unusable and one had to re-program while at other times the chip would never recover.

John's little 12F683 system came along and worked great so the former was abandoned.

The latter has now been modified and rewritten and run in a 12F1840 with telemetry system yet to come.