I plan on taking the '71 H1 500. Just thought I'd post the info if anyone else may be interested.

Flyer info.
http://oilypipes.com/vintage_flyer_2012.pdf

And the "club" osting the event. (no affiliation)
http://www.oilypipes.com/

Sorry for the late post as it is this weekend, 8/4 & rain date 8/5

Nick