As far as I know, the car I am restoring was originally equipped with a Bosch JF4 distributor and a Marelli BZR201B coil. My car, a Euro spec spider 105.57, has an official factory build date of 23 January 1968. According to parts manual, both coil suppliers are listed. One wonders why they wouldn't keep the same supplier for the coil and dist. Can anyone weigh in on the topic?