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Drouin Supercharger for 69-74 Norton Commando:
Drouin supercharger for 1969 -1974 Norton 750-850 Commando. It takes up the space that an Alton/CNW/factory electric starter goes, so it will not work on a 1975 or any retrofitted e starter Norton (Alton or CNW)
This is complete. You will need to machine the primary cover. And hold on!
Feel free to send any questions.