American Prime Manufacturing replica Keihin CV40 (Constant Vacuum) carburetor is so close to the original that you even can use OEM parts to tune or rebuild them. Carburetor comes with main jet and slow jet as used on most Twin Cam Softail. Other models and tuned engines may require the separate purchase of other size main and slow jets.
Fits 1988-2006 Sportster, 1990-1999 Big Twin, 1999-2006 Twin Cam and carbureted Buell. Or custombikes.