I don't race on dirt, but I live in the area. As far as I know AMS is the only track in the area that runs the Burris series.
There's a Facebook page that covers this area pretty well. I can't think of the exact name of it right now - It's WNY (Western NY) Kart Racers or something like that. You might find more information there. I'll look for it later and post a link to it.