Yet another thought on a scoring system ...
there is a classic racing series called the Lansdowne Cup which encourages originality in the bikes by adding and subtracting points ...
http://www.lansdowneclassicseries.co...s%20system.htm How about something like :
Plus 1 point
583cc
Standard cams
Standard pipes
Standard bodywork
Standard tank
Minus 1 point :
Fuel injection
Twin Discs
Ohlins