69 barracuda 340-s VS Formula-S

Ok, I am getting it, I think.

But what is all the 340-S fender emblem stuff about? Just to signify the engine? Does the "S" not stand for Formula S? I am thinking the car is just a basic model optioned up with the 340, heavy suspension etc, but not a designated "Formula S" car. I guess the 67-68 badging and such have me confused.

I have both the Fender Tag and Broadcast sheet. I can find lots to help with the fender tag but nothing decoding the Sheet online. Is there anything to help decode the Broadcast sheet out there as the sheet does not have the A, B, C ....... codes on it as with the tag? Does it really make a difference in having it vs the fender tag?

You guys were a great help with my tag in a previous msg. I pulled it off the car, blasted it to see it better. It reads:

M31 V78 EN2
G11 G31 G33 J25 M21 M25
A62 A86 B41 B51 C16 C55
B5 B5 D6B B5 526 B40299
E55 D32 BH29 and VIN

Again, sorry for all the newb questions. I really appreciate your help.

Thank you

Pat