Yeah, mo horsepower comes from mo engine . . . Yes, there are ways, but you don't want them. Sell the whole boat and buy something else. Best advice we can give you . . .
The general consensus is that the 470 & its mutations were a Merc. brainstorm gone horribly wrong, from the voltage regulator to the camshaft seals & such.....
They are hard enough to keep running stock.....
