Rochester 2GV Bad Hesitation

thank you for your input it has been very helpful! I will check the advance. I know that when I have my timing light hooked up and the advance plugged in the mark on the balancer does move up on the scale into the BTC marks as I give it gas. in order to check the balancer, would I mark the two pieces with a wax pencil and just keep my eye on it or is there a better way? also the accelerator pump does stream gas about 3/4 of the way down to full throttle. Again thank you very much for the information you are a big help!!