Thanks Scott, The boat is a restored 1987 21' Checkmate. The motor is a stock 87 merc 350CI 260HP 4 barrel carb I/O. The outdrive is an Alpha...
Adding Horsepower To 350 Io Hello, What would be the best and most economical way to add 40 HP to a 260 HP Merc. 350 ? All input would be...