[fredmeister]

I want to add that the fact that porsche having used many variants of distributor and throttle body as indicated makes this a difficult job for someone to sort out. Something like a distributor set up becomes a job like sending a man to the moon....I sense alot of frustration among members on this forum.
I found that investing in some experimentation with a vacuum pump and boost pump and a timing light will go along way in at least isolating what your particular dizzy does. Then it just becomes a matter of setting the idle timing so that you don't have too much advance under boost yet still enuff initial timing advance so that the car moves out of its own way from a stop light.