[wayner]

My 73T was delivered with MFI.

My other assumption other than emissions was that CISwas a cost saving measure over MFI??

This made sense to me when someone suggested it since after all, the T had steel cylinders/fins instead of the Aluminum barrels that the E and S had ( E and S shared the same cylinder part numbers, but not the T)

I find all of the different opinions interesting

I also find it interesting that CIS came in at a time when the US market was tanking due to the US economy compared to Germany and the unfavourable currency exchange
(In 74 they also downsized the CV joints and other cost saving measures)