Hi, I was hoping that some 350 owners could chime in by giving me the propellor specs on their boats. For what ever reason my friends 350 fitted with Volvo 740 engines (GM 454) is only turning up to 3100 on the port and 3300 on the other side. The port engine is a new long block and the other has a fresh top overhaul. Both engines have new manufolds and risers as well as new carbs and fuel pumps. There is no indication that the engines are not producing rated power, they run smooth and strong. Speed at these rpms is right around 18.5 knots. Again I was hoping to get some comparison performance numbers and propellor specs. Cor