Fouled plug turned out to be a broken lifter therefor not firing.... I just got it all fixed and went out yesterday..... Saw in literally flat way water 73.4@5500 both engines with labbed 25 mirage plus... One has a small ding but don't seem to have mattered now them results made me happy!! No engine tuning and flat water.... I was very impressed... Peak engine hp is 5200 but only loses 3 hp between 5200-5500