It should be plenty of power. I don't think the DLE-55 is much less power than the DA-60. I broke my DA in on a 23X8 Xoar wood prop which is really a 50cc size prop. It was not lacking at all with the 23x8. After 1.5 gallons I switched to a 24x10 Xoar wood prop. Vertical is a little better with the bigger prop and it keeps the RPM down a little. Are you going to do the rear exhaust DLE od the side? Just curious.

david