HI-Just got this dist.-Double Life housing,dual point,YC cap and rotor # is ZB 171 CX-Has a 8 lobe cam-could this be for an old straight 8 Buick or Pontiac? Any help appreciated. Thanks Doug Schriener
https://www.jalopyjournal.com/forum/threads/mallory-distributor-part-number-list.1088268/ helpful thread from @moriarty