The Mac's Pivot Plate bolts to the intake manifold and has an arm which allows a complete V-8 engine and transmission to tilt up to a thirty-five degree angle to ease installation and removal from tight engine compartments. The base plate fits most two and four barrel carbureted V8 intake manifolds, and adapters are available for racing specific and unusual applications as well as fuel injected engines. www.macscustomtiedowns.com