These high-performance carburetors are ideal for realizing the maximum potential from custom and race engines. Includes rubber mounting flange with 78mm bolt hole centers, choke cable and four different main jets. HSR smoothbore carbs offer excellent throttle response and control. Recommended for engines over 1200cc or larger. Use stock Harley-Davidson throttle cables. Well-made for years of dependable service. Made in Japan. For race and custom applications only..
