I want to buy a 18.5ft bowrider (1999 - 11 years old) who used to have a 220hp volvo penta engine (1.97 ratio). The guy who owns it burned the engine last summer and replaced only the engine with a 3.0 Volvo gxi (150hp, 1.97 ratio) and kept the old leg (he did not change Stern-drive Leg).
I...