Distributor mystery

[Alex Myall]

At Pigsty, we have done extensive dyno testing of many types of A7 engines and have found that the engine does not need an advance curve in the distributor. The dyno data shows that with fixed timing if the ignition is retarded slightly the peak power goes up very slightly high in the rpm range but the bottom end loses power. However, this does make the engine kick back when hand-cranked.