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#68111
chinewalker
Participant

    US Member

    The OMC built 20-35 motors of the 1980s-1990s, when they were rebadging them for Tracker, were all basically the same motor with differences related to intake manifold and carb size, so a 35 wouldn’t look bigger than a 20. The 20 and 25 would have a restricted intake – maybe 3/4 inch in diameter, while the 30/35 would have a hole in the intake manifold about the same size as that of the carb bolted to it.