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Registered
Join Date: May 2000
Location: Los Alamos, NM, USA
Posts: 6,044
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I believe this is the designation used for the 1973 T equipped with the CIS fuel injection. Also sometimes known as the 1973.5 T to distinguish it from earlier 1973 model year T's which were still equipped with the so called MFI or mechanical fuel injection. It was the first 911 model equipped with the CIS fuel injection so it has a few unique features and parts not shared with later years. Cheers, Jim
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