1988 50 horse merc question, looking for more power[Aluminum Boat and Repair Board ] [F A Q ] Posted byAndrewT (128.157.3.65) on April 06, 2002 at 14:40:24: Looking in my service manual it indicatest that the 50, 60, & 70 horse have the same displacement (stroke and bore also the same), and the carb jetting is the same in a 50 & 70. So if all that is the same what makes the 70 70 horses and the 50, 50. It would be great to have 20 additional horses. Bottom line what can I do to get more power out of my 50?
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