HI -- Mine has a 200 gallon fuel tank but I seldom put more than 100 gallons in it. When it is full it doesn't change the ride at all. My boat is fairly loaded and stock it did 65 mph GPS. It draws 3 feet with the drives all the way up and about 4 feet with them down. It is a great boat and handles the rough water great. Did you see my video yet. The boat is going about 75 MPH in 3- 4 foot waves in that video. ( Look in the video gallery under - BOAT RACE-)