• Designed exclusively for Harley-Davidson Big Twin and Sportster engines
• Butterfly-type carbs with a fully adjustable idle mixture screw and a changeable mid-range and high speed jet
• Fully adjustable accelerator pump and a variable enrichment/fast idle device for improved throttle response, engine starting and warm-ups
• Super E has a 1 7/8" (47.6mm) throat at the butterfly and a 1 9/16" (39.6mm) venturi and is recommended for use on any displacement Big Twin or Sportster
• Super G has a 2 1/16" (52.3mm) throat at the butterfly and a 1 3/4" (44.5mm) venturi and is recommended for use on 74 cubic inch engines and larger where high performance modifications have been done or are planned (not recommended for smaller, lower compression engines)
• If you are not sure which carburetor to use, we suggest the 1 7/8" Super E
• Each complete carb kit includes: one S&S Super E or Super G gas carburetor, one S&S teardrop air cleaner assembly, one manifold, mounting hardware, fuel line, clamps, overflow line, one extra intermediate jet, two main jets, VOES tubing (when applicable), and installation and jetting instructions

The Air Resources Board (ARB) does not permit the use of aftermarket emission-related parts that alter the air/fuel ratio of an emission-controlled vehicle. Due to these legal restrictions this part cannot be shipped to California.