Ok, the way I have been setting my timing is as follows. First I set the dizzy to 11* and adjust idle screw so that its about 800rpm. Once I get that right on I lock the dizzy down.

Then I rev the engine to about 3k and check to see what my total is. Which is right about 31* with the 20* the mechanical is giving me. I would say its all in around 2400 to 2600 rpm. I dont believe it really starts to add any advance until around 1300rpm. Although those values may be off a couple hundred.

I dont believe its adding any advance right away. Its just killing the initial timing when going in gear. I do still have one light spring left that I can install but with the Mr. Gasket instructions it stated that if I was not racing the car not to use the second spring.

Am I following your guys correctly with the timing?