New to site

I am new to this site, and Mopar ownership, as I was able to locate what I was looking for. I have been looking through the site and posted a few comments while searching for information on my car.
It is a 67 Barracuda Formula S 383 and I have a few unanswered questions, (I was only able to locate peices of a build sheet).

What is the M2 code on the fendertag?

Is the engine supposed to be blue or orange? I read some information that blue did not start until 68 in the 383 Barracuda, some say blue, some say blue unless it was built later in the model year, some say orange.

Ralley dash came with what? Once again I find info that states it could have the 120 or 150 speedo, and some info states it had to have the 150. Some state it could have the tach or performance gauge, some say it only came with one or the other.

Thanks for any help, Matt.
Here are some pics, my daughter approves and is ready to stir the gears.

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