The AMC Camshaft Kit - 666863K is the perfect upgrade for your AMC engine. This kit includes a high-performance camshaft, lifters, and all the necessary hardware for installation. The camshaft is designed to increase power and torque, while improving throttle response and fuel economy. It is made from high-quality materials that are durable and reliable. With this kit, you can expect improved performance and reliability from your AMC engine. This kit is the perfect choice for anyone looking to get the most out of their AMC engine.