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  1. F

    prop change

    Hi guys, one of my props is slipping at higher rpms. The boat is in the water and I dont have a trailer. Will I have issues if I change the prop in the water? Or do I have to pull the boat? Its almost 300 just to pull it long enough to change the prop. So obviously I would prefer to do in the...
  2. F

    3.7lx 470 best running rpm

    Hi guys, I have a 80' searay sd/fb 29' with twin 3.7lx engines. All improvements have been done, including the electronic ignitions. I am wondering, the valve cover says max rpm 4300-4600 . What is the optimal running rpm? The speed I would like to maintain puts me at a constant 3800-3900 and I...
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