[nitrousdave]

If your base timing is where you want it, you might be able to easily adjust the mechanical advance. On my old mallory unilite distributor all I had to do was take off the cap and rotor and then turn ther motor untill a small tab with some marks by it appeared. Then I just bent the tab to advance or retard the mechanical advance. I don't remember which way was which but I do remember that each mark was 2 degrees. Hope this helps.