Too Old To Race Antique Harley Motorcycle?

So, I ask you how old is too old to race in a vintage motorcycle event? A few weeks ago I was looking at my plans and realized I would be able to attend the annual Mountainfest event held in Morgantown, WV the end of July. I have been invited a number of times and have heard it is an outstanding event with something pretty much for everyone into motorcycles – new and old.