Have a 1991 Thompson 260 Fisherman with twin 4.3 Mercruisers, wondering how I can tell what Horsepower they are, was told 175, but would like to know for sure, Thanks
You'll need to know if they're 2bbl. or 4bbl. Carbs.......<br /><br />2bbl. is right around there,.. 180hp maybe.....<br />4bbl. is about 200/205hp.........
