IM selling a OS V99b Offroad racing engine. I bought it some time ago and dont really need it. Its Brand new so it needs to be broken in. The V99 came out before the V01b. They are practicly the same motor only difference is the carb opening is a little smaller than the V01b version, other than that they are pretty close. Sonny O has a V01 that has 11 gallons on it, these motors are far better than the newer V-spec in terms of reliability and longitivity. $225