Kewl Go Kart barn find what's it worth

Myself and our closest neighbors made a oval dirt track and we would get out and race go carts. Man, we'd have about seven carts out having a hell of a time. My friend across the street and I had racing engines so we had the fastest carts. My down fall was not having a live axle. My tire would spin most of the way around the track. Ah...the memories of having dirt in our teeth sand in our under wear.