Thank you, Bob...your advice is always spot-on! The shim that offers the greatest mechanical advance is indeed 28*. I have (had???) a vacuum gauge and will use it for setting initial advance at idle...should I look for the highest vacuum reading or the lowest?
If I ever take the car to a drag strip it will not be to race, but to do testing regarding various adjustments...accelerator pump shot, carb jetting. timing and distributor advance, that sort of thing...although I suspect that some dyno time with a good tech might well yield more reliable results.
Again...thanks for all the help you have given me, not only on this issue but others, too. It is appreciated much more than you can imagine!!!
Cheers!
Dugly
