Hi all, hoping you can help me. I have a 1994 Four Winns 19' Horizon with the OMC Cobra V-8 I/O in it. It's a great boat and when we moved to TN from OH its top speed was about 47-48 when te trim was just right. However after having it docked for 2-weeks we took it out and now at 4000 RPMs, its...
