I have a 1996 Crownline 225 CCR with the 5.7L Merc (Eng. Ser. # 0F793775). Since I am not entirely sure what type of maintenance has been done to the boat, I am changing out all of the fluids (of course), along with the common Maintenace/Tune-up items. (Distributor Cap/Rotor, Plug Wires, Plugs...