So my pop found what seemed to be a great deal for this Jag. The boat is in awesome shape, very few scratches still shiny as all get out ect. THe gentleman told us when we went to drive it that it felt a little sluggish out of the whole after it warmed up. Straight off the trailer in the morning it pops up and will run to 70mph. Later in the day the more you run it the harder it is to get on plane and on our last trip pop climbed up front and it finally crested over. I have ran the boat 6 or 7 times now and each day has been the same. Runs great off the trailer, longer you fish, the harder it is to get on plain. It has a jack plate trophy 25 prop. When it acts up later in the day the rpms will only get to 2200 with the hot foot mashed all the way. No alarms. Just curious for some things to look at. I know filters, fuel lines, plugs would be a easy place to start but i feel like its something else cause it runs so good the first few hours. Trying to help my dad from spending a ton of money trying to figure out the issue. Ideas?