When did Porsche switch to the disc type injector?
 

I was browsing through Paul Frere's book "Porsche 911 Story" and I saw an illustration near the back of the book that shows the new style disc injector. But I didn't catch what year they started using them on the 911.

I'm using a similar injector on my 86 3.2 that GM calls the Multec injector. What does Bosch call these injectors?

Cheers,

Joe Garcia
3.2 Carrera
Redwood PCA since 1976