40LUV is correct. 1983, Flemington Fairgrounds. I was there with my 55 Olds. Von Dutch (YES, the real one!) was the guest of honor.
Went in '85 with my buddy, Dave and stayed at one of the dorms. $10/night, couldn't beat that with a stick. Best little known show out there (at least on the east coast).
We went to one at the Hilton in Gathersburg Va but I can't remember the year. They were trying somewhere different. It was pretty nice maybe 150 cars, weather was great. The county had the largest fireworks display I have ever seen right across the street. Any else attend slim .