Thanks for the comments. I decided to do nothing on the engine size. We like the boat too much. I agree about the Cat 3208 HP ratings. I have spec sheets from Cat and they only show the 3208 in 425hp, 375hp, and 210hp (I think). I can call Cat, give them the serial numbers and end the discussion. I will do this next week. As for changing the re-circ pumps I can only say that my last name is Murphy and if I have everything put back together without changing them they will both take a major dump about 2 months later. I am going to have them changed. I am also having new impellers put in the raw water pumps and there is a spare pump on the boat. Remember, the seller agreed to the engine repairs as well as a $5000 hold back for anything else that might pop up. I want to have as much done as possible as these engines are an unknown to me and I don't like surprises.