View Single Post
Old 08-31-2020, 07:22 AM   #11
Jack Shaft
BANNED
 
Join Date: Dec 2019
Posts: 1,196
Default Re: Model A Distributor with Centrifugal Advance

The correct spark advance is 1 degree per 100 rpm,peak at 24 to 26 degrees max.Besides drivability mechanical advance eliminates detonation or spark knock, a cause of bearing failure.High compression reduces the tolerance for improper timing.The increase in engine efficiency is noticeable.
Jack Shaft is offline   Reply With Quote