Search larger image S & S Super E or G Carburetors $449.34 S&S Super E & G Carbs were introduced in 1990 and have become the best selling performance carb in market. Good looks, easy tuning and exceptional performance make the S&S Super carbs the ones to get. So how do you improve on that? A simple design change makes the Super carbs more tunable for radical cams and exhaust. How does it work? Its in the main fuel circuit air bleed. Older S&S Shorty carbs had a fixed air bleed for the main circuit, sized for the best all around performance. Starting October 1, 2003, all Super E and G carbs have a replaceable jet in its place. This allows fine tuning of the main circuit air bleed which determines the rpm at which the main fuel circuit begins to feed fuel. A smaller air bleed causes the main circuit to come in at a lower rpm. A larger air bleed causes it to come in at a higher rpm. This can be very useful when tuning high performance systems, which often, exhibit some harmonic reversion problems that inhibit exhaust flow at a specific rpms. Which one do I need, an E or G? As a general rule Super E carbs are for street engines up to about 100 cubic inches. The smaller 17 8 (47.6mm) bore creates higher air velocity, which results in better low and midrange response and power. The Super G is best for street engines of no less than 90 cubic inches. However, in spite of the fact that the Super G's larger 21 16 (52.3mm) bore allows more air to pass, and provides more peak horses, slower air velocity at lower rpm causes poor throttle response and weaker midrange torque in smaller engines. For most engines of 90-100 cubic inches we recommend the Super E for better low and midrange response. But if peak horsepower is what you want, a Super G would be appropriate. 30 day warrenty, buyer pays for return shipping. PLEASE SPECIFY which carb you need, the E or G at time of check out. larger image 44 mm CV Carburetor $376.99 44mm CV Carb for 90-05 Big Twins This 44mm CV carb kit features smooth airfuel flow for low and mid-range power. Installs with stock cables, but requires performance intake manifold. Fits 1990-2005 Evolution and Twin. 30 day warrenty and buyer pays for return shipping