The early 68 GT 350 Shelby had the std GT package but most were up graded so they had the 250 HP .
GT package is a handling/trim option, has absolutely zero to do with the engine/Hp. The 68 GT350 got a stock J code as the 289 was discontinued. Cars built befeor mid MArch 68 (a large majority of Shelbys) got a sock J code with cast iron intake and Autolite 4300. After mid March the got the Holley (thermactor equipped only, but IMCO/automatics had to keep the Autolite) and the different intake, that's about it... dealers provided the Cobra intake and carb as a recall (some owners never got it done, some only swapped the intake and kept the original carb). Thus the common disdain as the engine really didn't get much over a stock J code Mustang. Bone stock J code block/heads/internals. You could add a Paxton, as well. That's about if from the factory.
The ~60k is the ballpark for any "really nice" 67/68 fastback. As a Shelby clone you've limited resale as the main drivers for the 67/68 fastback prices are:
- make a Bullitt clone (they could paint this Highland Green, or something close. And then it would be about as good, or better as its nicely done from the photos, than most "Bullitt clones")
- make a Eleanor. As above, but substitute silver-ish grey body color and dark grey-to-black stripes....
- any other restomod, strip the shell and add whatever after market parts catch their fancy
- Shelby clone...
So this hits 1 of 4. Most would not buy such a nice car for options 1-3. Sadly all the extra cost to Shelby-ize does not equate to a big bump in resale value.
