I recently purchased a 1998 21 XD with a 1998 225 EFI. It has 12 inches of setback and I measured it to be 3 inches below the pad. It has an older 26 trophy on it that has holes in it but are the older smaller ones. WOT I saw 15 psi on water pressure. The boat runs great once on plane but takes it around 5 seconds to get out of the hole and this is with a light load. Any suggestions would be appreciated. I put new plugs in it, new water pump and had lower unit inspected/serviced.