Number matching questions

First thing you should get is a set of Galen's "White" books, especially the production option code book for 66-68 and the parts interchange manual. Those 2 books will help you decode every aspect of the build sheet, and also allow you to run any part number form the dozens of items you should be checking for correctness. Such things as the radiator, the exhaust manifolds, the trans, intake and other items that will verify its authenticity and level of correctness. Some of these items are high dollar pieces which when in place will add to the value of your car. Next will be to learn how to decode the 67 fender tag, and how to correctly decode your build sheet. 68 and earlier are much more confusing than the 69 and later system, so be sure to pay attention.

As for the build date of your car, the difference between your motor assembly date and your scheduled production date are about right, but the sale date in June probably means this car was either dealer ordered, or maybe part of a batch of GTS's that were built and sent to higher profile dealerships. Either way it came out, you're a lucky man to have it. Check them numbers, it's in your n!!! Geof