I have a 1987 SEA RAY sorrento S21 with a 5.7L Mercruiser alpha one. It has a 4 bbl carb. (don't know what kind) it starts easy, runs well with only 2 problems. Problem 1, when going from 3/4 to full throttle it hesitates for about 1 full second then takes off. Problem 2, after running at speed...
