Intake manifold torque specifications are available online at BoxWrench.net, Torkspec.com and Edelbrock.com as of 2015. These sites provide torque specifications for multiple automotive parts, makes and models.
BoxWrench.net provides torque specifications for a variety of domestic car manufacturers, including General Motors, Ford Motor Company and Chrysler. Torkspec.com allows users to search domestic and foreign specifications by section, part, manufacturer and engine. Edelbrock.com provides small- and big-block crate engine specifications for manufacturers including Chevrolet, Pontiac, Oldsmobile and Chrysler.
Additional specifications are available at AutoZone.com and Small-Block-Chevy.com. AutoZone.com provides the engine torque specifications for the Nissan Quest, and Small-Block-Chevy.com provides a general specifications guide for small-block Chevrolet engines.