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I would contact some local clubs there like the PCA or the BMW or even a Corvette club as they often times have track days and the cost is lower with many running exceptional events.
I suggest you look to the NASA (National Auto Sports Association) or SCCA (Sports Car Club of America) websites. They're perhaps the two largest amateur road 'racing' organizations in the country. Chances are they offer venues in your area. You'll have a proverbial blast!