The 1970 Shelby
Ford had a pretty good idea the Shelbys were not coming back soon.
The stamped serial numbers in the front of the car remained on the car. Because these numbers were not meant to be seen, there was no need to change them. The windshield tags on the car had to be changed to reflect the new model year. This involved removing the windshields of every car converted to a 1970. Door warranty plates were removed and a new updated door sticker was added. Corresponding paperwork for the cars also had to be corrected before the cars were shipped to the dealers. The dealers were not responsible for updating any cars.
The twin hood stripes are the easiest way to recognize a 1970 model. Not all hood stripes were created equal. There was a factory template to paint the stripes. For many years, this template was unavailable and many of the cars were repainted incorrectly. The other thing you should know is that if you have a Dark Jade car, the hood stripes were actually painted with flat black instead of the gloss black used on the other colors.
The recognizable chin spoiler was shipped to the dealers in the trunk of the car. It came with a one page instruction sheet to properly mount the spoiler.
The emission systems also had to be updated to 1970 specifications. Several dozen cars sent to California dealers required additional
evaporative emission" system to be installed on the car. This was an elaborate system of venting and recycling fumes. It added quite a few parts to the fuel system and the engine compartment. The original Shelby blueprint for this modification is shown above.
The 1969 carburetors were changed from the automatic choke to a manual choke. There was now a choke cable installed under the dash. These changes included a new notation on the carburetor tags. The letters "ED" were added to the carburetors tag.
If you are familiar with the Holley part numbers, they appear on this Shelby print.
As part of the updates the cars distributors were also changed to 1970 versions. This distributor was the replacement for a GT350, automatic transmission car. I believe the 1970 GT350, 4 speed cars used the D0AF-H distributor.
For the GT500s the distributors were changed to the D0ZF-C for the manual and the D0ZF-G for the automatics.