This Edelbrock instruction Book and DVD provide you with how to install, maintain and set up the Edelbrock family of carburetors. There is a breakdown of jet metering rod and power springs by carburetor number along with how to tune your specific carburetor to be richer or leaner at idle, midrange, and wide open throttle. How to’s on setting the, choke, float height, float drop, fast idle speed , curb idle speed, etc. Booklet is in English and Spanish. DVD is English only.