Hello, I'll get straight to it. I'm a rather new owner and have a 1987 Regal Royal 250 XL with an 87' OMC 5.0L 230 HP +Cobra drive. The boat weights 4000lbs, but with gas, people, etc. I'm sure I'm pushing close to 5000lbs or more. WOT is supposed to be between 4000-4400. I only can get 3800 or...