225x Vs Modified 225 Promax

[chad202]

How much horsepower does a 225x put out, I'm guessing around 235-240? Now how much does a 225 promax with merc HP tuner, rev limiter raised from 6750 to 7250, nothing else done to ecu, just raised the limiter, and a set of 35cc heads have. I guess around the same as the 225x, maybe a tick more. Can anyone shed some light on this?

[Steve Austin]

the best thing about the old promax is you can bump the rev limit up. You cant do anything with the 225x yet. I am on the limiter right now with the 28et. My only option right now is to change props or gears.