[Patrick L.]

Base timing should be [ or about] at TDC [ 0º ]. Full advance timing is 40º as designed by Ford.

I'm in agreement that these monsters don't need 40º, but, thats what that left lever is for.

Now that we know a test light, instead of a timing light , was used it makes the job much easier. A test light or continuity meter across the points will quickly show when the points are open or closed.

Just make sure the points are adjusted prior to setting the timing.