Hi. I have a 1989 Johnson 110hp VRO. It is pushing a 19.2ft center console Marvac. It just seems that there is not enough power. Engine runs like a dream and sounds normal. I don't have a tach yet, but soon to see how many RPMs I'm getting. When throttling up, the boat planes real smooth. Not sure, thought I ask. ( water conditions don't seem to effect the performance much ie. choppy or calm)