i dont know the similaraties between mvvs and evolution. let me clarify just on the evolution name brand here. my buddy bought one----- ITS EXPENSIVE 400 PLUS. the motor is an obvious conversion. it was not born a gas motor. it has an aluminum rod with a bearing pressed into it., its internals are small and light weight, not what you want for a gas motor. it has no internal mass to devalop the torch of a gas motor with a dual countrweight crank. its always out of adjustment so it seems and has an adapter to mount the carb. the carb is in a horrible spot to close to the prop. the ignition leaves somthing to be desired. it went up in smoke on the first flights. the battery used can be a higher voltage, but only on the 26 version2. used with the version 1 ignition will fry the ignition unit. basicly you will never get the reliability, durability or long term power of a steel rod dual throw gas motor. dont waste your money.