I fyou want a very fast 1/8 or 1/4 mile Banshee the guy to call is Brian Sutton at Brian's 2 Stroke Performance in Florida. His number is: 954 739 1097. 90% of this guy's engines are 1/4 mile bikes..He has a dyno and can dyno the bike for you and get you the power you need. He does VERY good work and will not rip you off. He specializes in Banshee street racing!
Give him a call