S&S continues the success story of their Super E carbs with a special Black Series edition that was first released for the S&S 55th Anniversary in 2013. These carbs feature a distinctive gloss black Enduraguard coating, which is heat and chemical resistant. In addition to cool cosmetics the Big Bore versions have specially machined venturis for up to 7% more flow. The Black Series carbs are not offered as complete kits, but as carburetor only. That gives you complete freedom to work with these carbs in any custom application.