"All else remaining constant, how many degrees of advance or retard does one gear tooth on the distributer give? I guess I could count the number of teeth and divide that into 360....
so I counted them. There are 12 so each tooth will advance/retard by 30 degrees. The dizzy adjustment travel is also about 30 degrees. This info becomes significant when the required timing setting occurs at either limit of the adjustment travel, as mine did