Apparently I'm not the only one who has trouble leaning over far enough to see down the hole. One hand for support, the other holding the light.
Now, my Haynes is not at hand, so I can't look at the advance info. 15 deg at 1000 may not be out of line, since idle should be slower. I marked 33 deg on my pulley (OK, OK) and look for that all in - around 3000 or so. My ti-ish motor then idles at 700 and about 10 deg if memory serves. Either your new distributor has a very short advance curve, or, how to put this delicately, perhaps the timing light interpretation needs review. Also, what tach are you using?
i used a yogurt container lid to transpose the 33 deg mark to the pulley.