Timing Question

I replaced my timing belt a while ago (cause it broke) and when I was timing it with a light, I noticed something that I wasn't sure about. I set the timing at idle, and then while holding the timing light and reving the timing advances like 20-30 degrees the higher I rev. Is this normal?? My car runs fine, I'm guessing that it is, but wondering.

yea, it'll do that

yea 91 civich is right... so if you used the manual to get your timing #'s and it says your idle should be at 650 at norm operating temp but your car was idleing at 800 when you did the timing, then you may have a slight prob.