Full details on camshafts, camshaft timing, valve springs and cylinder head options and modifications. Carburation chapters cover: 13/4 and 2 inch twin SU setups; triple 2 inch SUs; and triple Weber and Dellorto setups. A special section is included on modifying SUs for improved engine performance, along with the relevant needle specifications. Full details on ignition systems and timing, exhaust manifolds and systems and general tune-up information.