Hi, I just bought my first boat. Its a 1987 Sea Ray 18.5ft. It has the 3.7l mercruiser. I,ve found online that if it has the 2 barrel its 140 horse. And if it has the 4 barrel its 165. I only have the 2 on it yet my registration says 165. So is it safe to assume my Reg. is wrong?
Oh and new to...