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  1. GN7 On the Dyno
    Looking to get rid of my aerospace vacum pump.it would only pull 8 at wide open throttle. Would a moroso enhanced 3 vane be okay or is the 4 vane better?
  2. Greg Shoemaker
    how much keel vacum do you look for. just finished hooking up data system and not sure what is a good number.
  3. Jet Boats
    will it only pull vacum at full rpms?when i start it ,it stays at 0 when i rev it up a little it moves and bounces a little.is it better to take the line off the valve cover when warming up the motor?
  4. GN7 On the Dyno
    do the vacum pumps work alot better than a evac system?
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