There's an evening show in Flemington, NJ on Saturday, 7/25 at the historic Hunterdon County Courthouse. The featured cars are Mustangs and T-Birds. Never been there for a car event, so I can't comment on what turnout will be like. But weather looks good so far and that's a positive sign. And Flemington is a very beautiful and historic area.

http://www.flemingtoncarshows.com/#!schedule/corh

For those not familiar with NJ, The Hunterdon Courthouse was the scene of the Lindbergh baby kidnapping trial in 1935.