Centrifugal advance distributor

[AzBob]

In a nutshell, the Honda Civic points distributor’s advance curve full advance will come in at a much higher rpm. I don’t have exact numbers. For example max advance on the Honda engine will be in the neighborhood of ~ 4500 rpm. Whereas you want the Model A engine to be at full advance ~2000 rpm.

To accomplish this will need manipulation of the bob weight springs or the bob weights themselves. Also need a means to verify. Can be done in the car with a timing light setup. Ideal setup would be with the distributor mounted in a distributor machine.