“I owned a 1994 28 Walkaround . When I bought the boat it had 225 mercs , after having an issue with one engine I repowered with 250 saltwater series mercs . I increased about 4 mph top end and a about 3-4 cruise at te same rpm (3800-4000) range . I was very happy with the repower and it made a difference performance wise and not fuel wise . “