#69039. Engine Building, Carburetor Tuning & Transmission Rebuild Video and DVD - Torque Specs, Engine Specs & Firing Order BoxWrench.net is the home of the Basic Engine Building DVD, Holley Carburetor Installation & Tuning DVD and the Transmission Rebuild DVD for the 4L60E - 4L80E and other GM drive trains. There is a database of Engine Specs, Torque Specs and Firing Orders. Mechanics can also discuss rebuild and repair issues in our Community forum. A list of automotive parts and performance industry contacts and links can also be accessed.Now selling Harley Davidson Maintenance, repair and perfomance upgrade DVDs! Boxwrench.net~Site InfoWhoisTrace RouteRBL Check