My 250Vmax 2003 non hpdi drinks gas my fishing partners cant belive how much gas I use in a tournament most of my running (70%) is at 4500-5000 rpm 50-60 mph and I will burn most of a 38 gallon tant in a trip. Everyone that has fished in my boat sayes it used twice as much as there boats with 225-250-300hp motors is there anything to check or ajust it runs great idles a little ruff almost like a mis but hit the gas and it runs fine what do you think