Thanks in advance for looking this over.
I have a 1974 911 that was upgraded to a 1980 3.o from the original owner before I bought the car. The lambda unit was not transferred over to the '74 and the exhaust was backdated, kept original (early '74 car).
The car really runs well once warm but I keep wondering what I may be missing out on by not running the lambda.
I see that there is a difference in the '80 and 81,83 units and was wondering if I would want to upgrade to the later unit with the cold enrichment, etc. or would I need to or want to stick with the '80 lamda?
Should I run lambda at all?
Thanks Pelicanites for your help!
Christopher
