I have a 350 mercruiser 1989 Marlin inboard skier. 19 ft. 260 hp. Everything runs fine. I've down loaded the stock timing curve, and I can see why my gas time is bad. I do not use wot., I don't go past 27mph. I'm 51 and this is the year for wakeboarding. RPM'S at 2100. Manifolds warm...
