It would be like a car with taller gears and smaller dia. tires. In the end they would travel the same distance and speed. However, common wisdom seems to be that 1.5 ratio is more efficient in our speed range. Just suggesting. To me it seems like more is wrong than just gears. If the former rpm was 5000-5200, with the new ratio, the new rpm would be 4500-4700. 1.50-1.35 is not a very big change.

Might of found the problem, No compression in #7 Starboard Motor, Bad Fuel pump on Port Motor. Sometimes we're looking in all the Wrong places. Will know more when they pull the motor out.

I'm off to a great season with a new to me BOAT.

Are these Bravo 1s ? I was thinking the ratio is determined in the upper?