Hey guys, i hope everyone is enjoying the boating life this year. The reason for my post is that my mercruiser 233 ford 351 is surging. It seems that after first launching the boat and about the first hour or so everything works picture perfect. Then at about half throttle my engine surges and does not want to make power. Very hard to get on plane. My thought is the fuel pump but does not make sense to me that it runs great for so long before i have issues. Any advise would be greatly appreciated. Thanks and enjoy the water :grin: