I was test driving a boat I was thinking about buying. 14' rivermaster sbc with cast heads, rotator gear box. The boat was set up by Hoffman. The boat to me seemed sluggish. After talking to the owner he said he added more pitch to the prop (power shift) to get the rpm's down to get better fuel mileage. I didn't have the boat wide open but I would say about 4 to 4.5k is all it will spin up. If I took some of the pitch out of it would it perfom much better or is this boat just a barge. Thank in advance to any thoughts on this.