I went to two shows in the last three months, and one "great big block party." The first two restricted the entries to no vehicle younger than twenty five years ago. The third one let anyone in. We won trophies (sadly, no 350) at the first two, and didn't even place at the third one that was peer judged. We were parked near a monster truck and a 2006 Scion! There were about 200 older vehicles in it, most thirty-yarders. Point is, check out the restrictions, if any, before you journey out to a show. We learned a great lesson from the 10-block party. Here's our entry--lots of help from the 'Bolt.
http://www.stovebolt.com/gallery/lewis_john_1953.html