How can I find out what the WOT should be and the range of rpm's for my 1968 Mercruiser Sterncraft. It's 22' long with a 165 hp straight 6. It has a 14 1/2 x 17p prop?
Today we were out on the water and it only ever got up to about 3200 rmp. Figured it should do better than this.
All...