It really is pretty simple. If you're not V&H, you cannot race a HD. Somehow this has been forgotten, but it really isn't fair at all.
http://competitionplus.com/drag-rac...-hines-nhra-prove-you-can-win-on-another-bike
http://competitionplus.com/drag-rac...-hines-nhra-prove-you-can-win-on-another-bike