Is my car a Tag Job? Barracuda Decode...

I agree that someone didn't have a title for a V8 Barracuda but had one and the VIN plate for a six cyl car.

The fender tag you have matches the build of the car, right?

Technically that IS "VIN tampering" which is quite illegal.

Probably not gonna get called on it though unless someone in DMV or LEO really knows their pre-1968 Mopars.

Replacing a damaged rivet is NOT "tampering".