I finally succumbed to my urges and bought a boat. She is a 1964 GlassMaster with a 110 HP Mercruiser IO. Pictures will come soon, she is pretty rough but hey, now I got something to work on over the winter. New Floors, some transome repair, re-gel coat the top, new windshield, wiring, re-chroming. Then she will be like new!<br /><br />Does anyone know what was different on the 153 CI engines where my year it was rated as 110 HP and then the next year it went up to 120 HP?