It's a Super Tiger, splash of the Southwind, which is what the Hawaiian and Challengers and dozens of other makes were as well.
glad somebody else said it! Back in the day southwind would only pump so many hulls out of a single mold then build another mold. It is the most splashed mold for the 70'S in a jet boat 18V squirt. And alot had been layed up in an over worked molds But not by southwind they would sell them off to other manufactures for southwind splashes with there own label on them only because that was the best working hull in that decade.