More power is possible through better porting, assuming it's going to operate in the same rpm range. You can make power from displacement, cylinder filling, or rpm. I doubt it will have the power of the ZDZ-80. Maybe equivalent to a Zenoah-80? Time will tell. The claim of 7,000 rpm on a 22x12 prop for the MVVS-58 is about the same as figures posted on the Amelung Modellbau site for the ZDZ-60. More choices are always good.