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  1. J

    motor components

    I have a 1991 305 mercruiser, and I am going to upgrade to a new 350 vortec engine. I know my intake will not interchange but will my exhast manifolds interchange, power steering pump etc..<br />Thanks, Jerry
  2. J

    what to do next?

    I have a 1991 20.5 foot montery with a 5.0 mercruser. here is the prob the motor is fouling the rear plugs after an hour or so of boating.Front plugs are fine maybee alittle lean but the back plugs are just black with soot on both left and right sides.<br />A little history for you. Last season...
  3. J

    305 trouble

    Hi guys,<br />I have a 20.5 foot monterey with a 305 17 pitch prop. This spring I replaced the carb, intake, plug wires, cap and rotor. I have been to the lake 3 times the first two the temp outside 75 to 80 degrees water temp 50, boat ran great. the last time the temp was 102 and water temp was...
  4. J

    2bbl to 4bbl

    Hi, I have a 1991 monterey 20.5 ft boat with a 305 mercruiser 2bbl carb and I am thinking of upgrading to a 4bbl carb and manifold. What will the performance difrence be? where would be a good place to shop for a combo deal if there are any.<br />Thanks,<br />Jerry
  5. J

    engine trouble?

    Hi, I have a 1991 20.5 foot monterey runobout with a 305 and after 3 or 4 hours out on the lake it fouls the back plugs 1 on each side of the motor. When i pull them and look at them they have carbon on them they are not at all wet and I dont think they are oil fouled because they are totaly...
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