Car Authentication help

I have a 1968 Formula S Barracuda convertible. I do have the fender tag and the vin number
matches with the transmission. Can't locate the engine vin number, did find a casting numbers 1969 and the car came with a 1969 stock intake manifold.
I think its a warranty block?

Can I obtain any info on my car. Galen's or Chrysler Historical Archive?
Like to see find out as much information as possible, not sure where to go.

I restored the car back to complete original factory condition about 10 years ago
and still looks and drives excellent.