I was averaging 20 mpg with a bad head. Since then, I've replaced the entire top half of the engine, and adjusted the ALDA for performance. It is accelerating great with little smoke. I havn't run a new tank through, but I am hoping for mid 20s like many of you are getting. I plan on adjusting the ALDA to maximize performance and fuel economy. I would love to see high 20s like GSXR.