Okay so I ws reading my newest issue of Hot Rod magazine and they had an article in there about a 1929 Ford Model A with a 2.3L Cosworth rally motor. And on the motor they had what they called a MAT Spark Eliminator. And basicly what it does is every third spark gets dropped in order for the motor to sound like a true flathead.

EX. 1, 2, dropped spark (3), 4, 1, dropped spark (2), 3, 4, dropped spark (1), 2, 3, dropped spark (4).

I don't know if that makes sense to anyone but if you have any ideas on how to make something like this work it will be greatly appreciated.