Should be a really good race tomorrow. Get there early because parking becomes a real challenge. The speedway's facebook page says do not park along the highway because the state police are going to have those cars towed this year. They have a lot to the east where overflow parking will be and will run shuttles to and from the track. Speed51 will usually does audio for these races.
http://www.greatlakesfreq.com/ This site has frequencies posted for this race. Just click on the CRA option on the lefthand side.