Jon,
We have been discussing the small fuel tank issue for the A bikes and may make a rule change for 2006. It seems that this rule was inherited from the AMA rules back in the 1950's when SCTA first allowed motorcycles to run at Bonneville. All records set previously were run under those AMA rules. And to maintain tradition, the same rule set was continued. We are still trying to determine the original rationale for the rule. At this time, there does not seem to be any advantange (over the bikes that set their records with the small gas tank rule) for the current entries, if they want to use a larger tank.
So, if you know of someone that is having a problem because of an inadequate supply of fuel to make a run on the long course (e.g., an alcohol burning, big inch motor, with a hot cam and lots of overlap), they should send me a request for a consideration of their problem.