http://www.chiefblackhawk.org/HUGE HUGE antique bike swap meet. Alot older BSA, Indian and British parts but u can find some jap parts and usually there sohc4 parts / bikes
"The 2008 meet packed over 500 vendors into 800 vendor spaces covering about 13 acres for your shopping bliss. Most likely you will find your special part here or at least meet some people who will direct you where to find it. Visitors report the Chief Blackhawk Meet is one of the largest Antique Swap Meets in the USA!"
Thursday: swap meet starts
Friday: night bike racing on the 1/2 mile dirt track 6:30pm
Sat: night 7pm dinner after dinner speaker T.C. Christenson
Sun: judging then pretty much everyone packs up that day
PS. If anyone knows how to add this to the calender please let me know. There used to be a button on the top menu on the old style forum layout, but there doesn't appear to be on on this new layout.