This 20 page Holley Carburetor Service Manual is just what you need to get your Carburetors properly set up, synchronized and working properly, these Carbs were used on the 1969 Cornet Super Bee, Belvedere Plymouth Roadrunner and possibly more? It also covers the 1967 to 1969 Corvette, and were also used on the 1961 through 1963 Fords and Mercury, this one mentions all these models and years, and probably covers more models and years also, the Holley 2300C was used for the center choke carb while the Holley 2300 were used for the outer two carbs, Illustrated and easy to follow directions full of info and stats, covers installation, adjustments, specifications, illustrated parts, and much more. All the information you need to service these carburetors yourself.