is this cuda #'s matching

Im not really sure about the "F" in the fender tag there is no F I put all the tag info on above post ???
Car is a fb auto (want a 4spd) can always change it one day grin right guys :)
I really like this site I drool over a lot of members cars here A LOT
I think its what got me wanting a mopar again, last one was a 15000 mile sport satellite yes 15000 miles never touched very minty was my grand fathers he liked the bus more I guess.
Cheers everyone and Im really hoping someone here can tell me 100% its a numbers car.
If its not how much does it affect the value ie
68' 340 S number 2 car numbers matching
VS
'68 340 S non numbers matching but date code correct
thank you again
Greg