This is a Pertronix Electronic Ignition kit for a MGB 1976 to 1980, Spitfire 1975 to 1980, Midget 1500 1975 to 1979 and TR7 1975 to 1980 with Lucas Distributor (Not Delco Unit). These kits are very easy to install and are truly set once and forget it ignition system. This is only for the original Lucas Electronic distributors. Please look at the diagrams to double check your distributor, it must be one of the two units. Please call for details or questions.