Looking for guidance. I have twin Merc 5.7 EFIs on a 2001 Sea Ray Amberjack 290, Bravo Sterndrives. When cruising, I cannot get the Port engine over 2300/2400 RPM even at Wide Open Throttle, and I need to hit 3000 to get on plane. Observations:
1) low water flow from port engine when running...