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  1. Billet head Yamaha 30 hp 3 cyl (1 replies)
  2. propellers with leading edge roll/cup ? (24 replies)
  3. 60hp Mercury (7 replies)
  4. OMC GT 115/FT10 gearcase (2 replies)
  5. Performance Improvements possible with newer 4 stroke outboards (60 replies)
  6. Cranckshaft degrees (3 replies)
  7. Putting a hose fitting on adaptor for flushing !!! (0 replies)
  8. Omc 56 tuner questions (7 replies)
  9. Surface piercing props in action (5 replies)
  10. Yamaha 15 hp , 2 stroke , shaving head (1 replies)
  11. Tohatsu M70B - how to increase an engine power? (23 replies)
  12. Raising the ports sky high on oval port 56 (7 replies)
  13. why does an oval port have an advantage over a bridgeport motor for holeshot (13 replies)
  14. What OMC should have done.... (8 replies)
  15. Johnson "70mod" (370 replies)
  16. Nosecone (131 replies)
  17. 2 Cylinder Yamaha Mods (3 replies)
  18. 87 yamaha 40hp can swap? (0 replies)
  19. Interest in new 3 cylinder drag rules..motor alterations and mixing manufacture parts (44 replies)
  20. exhaust duration OMC 56er (2 replies)