S&amp,S Cycle S&S Cycle Super 'E' Complete Carburetor Kit 11-0404 Smaller than the &amp;lsquoG&amp;rsquo its 1-7/8" bore creates higher air velocity, which results in better low and mid-range response and power Recommended for engines with displacement up to 100 cu. in. Accepts stock late model throttle cables on all Big Twin models Kits include everything needed for installation on your Ironhead Sportster with O-ring heads including the manifold and air cleaner