I have a Bosch coil that has a black body with a red top part number 0 221 500 002. I have an Alfa Parts Book and it said that you car could have used a Bosch or Marelli coil. The Marelli coil has a external ballast resistor similar to what was used on later Alfas, and the Bosch coil only has an Alfa Part number. I did not realize that Marelli coil and distributors were used on 105 series cars. I used to own a 1967 Spider and it had Bosch electrics.
Last edited by kuni123456; 07-19-2019 at 09:45 PM.