Feuling 543 Cam Kit For Harley Twin Cam Features: The 'Freeway Flyer', great camshafts for those who want more top end power than the 525 cams without sacrificing low end torque Extremely smooth cam lobe layout maintains quiet valve train and produces the smoothest cruise power band available Excellent bolt-in camshaft for stock to mild 96 and 103 engines and works well in 88 and 95 engines Cam is easy starting, increases throttle response and fuel mileage. Responds well to increased compression ratio, performance exhaust and a high flow air cleaner 1900-6000 RPM range Gear drive gears 434-107 sold separately