Ok Rod, what is the point of your question? One of the reasons I didn't ride the event was that I ony had 1 bike going and it's an '82 430 Husky, EVO class. The GCR's stated that you weren't allowed to ride a class up (pre'85) so I stayed home as $185 entry for being there 3 days for 3 x 3 lap races was a tad hard to swallow for me. I simply can't cope with eligibility BS and didn't want any hassles. Simons hybrid bike is not legal for EVO, so is a legit pre'85 bike and that's where he rides it, but it seems that you were indeed allowed to ride a class up looking at the EVO bikes in the pre'85 class.
Cheers,
K