I have a 1998 Mercruiser 5.0L EFI Model #4M31027M1 Serial #0L380879 in a 2000 Regal 2100 LSR. Just purchased this boat and on first run boat was sluggish and bogged out at WOT. After 20 minutes of running around the lake, everything smoothed out and it ran like a dream. Second outting had no...
