There is a Cabin Fever show around here, usually in Jan, but I guess Mar. this year. There are usually at least 2-3 V-8's there. One I've seen several times is a Ford Flat Head. I believe one is a small block Chevy. The Conley too. One guy built and ran a Gnome rotary(with a prop blasting out the doorway). It was about 18in. diameter.