[teachkenpo]

tharbert -
1973 E and S cars are all MFI. 1973 T early cars where also MFI. Starting mid year in what is known as a 1973.5 model, Porsche put a newly revamped 2.4 engine in their T cars. These cars sported a 2.4 liter 7R case with the new CIS fuels system. I have one of these cars and can confirm that it is a 2.4 liter, not a 2.7 liter. I think the confusion is that the 2.7 liter case also has a 7R case, but it has bigger spigots than the 2.4 liter 7R case.

I am not aware of any 73 cars with a 2.7 engine. I was under the impression that 1974 was the first year of the 2.7.

I do have the same question as Buddan regarding the rebuild options. I have been told that a 73.5 with a 2.4 CIS 7R engine has limited rebuild options if you want to keep the CIS fuel system. If anyone has information on how to upgrade these engines I am interested in the info, as I am looking to rebuild mine too.