Scrolling through the Research page on “the First GT500 cars” notes the Ford and Shelby Supplied build information.
http://1967shelbyconvertible.com/research/the-first-shelby-gt500-cars.aspDSO item # 3000, DSO number 2504, Package Original Order 413H, Package Delivered 411H, eng 428 w 2 4bbl carbs, C6 Auto, PS, PB, Courtesy Light Group, AM Radio, Black Interior Décor Group, Tinted Glass, Deluxe Seat Belts, 15” Kelsey-Hayes Magstars, Goodyear Bias Ply Tires (Speedway 350 Large Lettered) 3.25:1 rear axle ratio, Red Paint, Engineering Prototype, AC
Ford records (DSO and Marti Report) indicate that all three cars (0100, 0131, 0139) were originally ordered with the Exhaust Emissions system. A FoMoCo Change Notice, dated Aug.10, 1966, was issued to delete the exhaust emissions system from DSO 2511 (0100 - the Fastback). This deletion is also confirmed by the Shelby VIN for 0100. The Shelby VIN for 0131 (the Coupe) indicates no emissions system. Furthermore, no FoMoCo Change Notice was found, and there appear to be remnants of an emissions system in 0131's engine bay in a vintage photograph. This leads is to believe that 0131 was originally equipped with emissions at San Jose, and it was removed by SAI when the Coupe was transformed into a supercharged rocket.
Motor Code: 1967 Shelby big blocks were coded with an "S" in their Ford VIN which would normally denote a 390cid FE-series big block, however, these cars left the factory with a Q-code 428cid 8v (dual quad) FE-series "Interceptor" power plant. This information was verified both by the DSO and by the 1967 Shelby Registrar, Dave Mathews.
next post the hand written page I believe you are referring to;