After a year of having my Sea Ray in dry dock, I took her out for a Maintenance run. I was pleasantly surprised that it ran pretty well except for a couple of hiccups. After running at wot for a bit, I throttled back to idle and opened the engine compartment for inspection. When I went to bring it back up, around 2K, to get on the plane the engine would stall out. I could keep it going if brought back to idle. I would get an acceleration and then drop off to a sputtering engine and then it quits. I could get the engine up to speed after messing with it. The engine restarts fine. The oil pressure and water temp are in the green. Also the throttle is stiff when shifting but the drive shifts normally. Any ideas would greatly be appreciated.