One of my friends on the Ford Barn was kind enough to print and send a timing tape calibrated for my Flattie. Now I will be able to set my distributor up and not just set the initial timing.
The Chevy distributor is able to run close to 40 degrees of total advance but the flathead can only stand about 26 degrees. Having the tape is going to really make it easy to see what the distributor is putting out for initial, mechanical, and total advance. I hope to play with it some tomorrow.
Thanks Richard in Florida.