The boat with the twin 130'a has been on there for a while. Saw it when I was looking for mine. I can tell you in my searching I saw several with twins in the teens price range. With the 225 two stroke I was getting just over 40 mph WOT and a good 30 mph cruise. Here's a video of the boat running after I just rebuilt the carbs... you can decide if it looks underpowered:http://youtu.be/QSwPUH5v6f4
With a 225, 4 or 2S, you should break 40, probably around 42 at, say, 5400 RPMs. Medium load, half fuel, you know the deal...