They ran two up in some early Marathons, like the 1961 Winnebagoland. That was the last year for that race and they ran Stock Utlilities on the usual course, and ran OPC (Outboard Pleasure Craft,...
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Switzer Wings
They ran two up in some early Marathons, like the 1961 Winnebagoland. That was the last year for that race and they ran Stock Utlilities on the usual course, and ran OPC (Outboard Pleasure Craft,...