Info on 74 Dart Sport

Thanks!
That looks like the real deal. A63 is the code for Hang Ten, and E58 is the 360 4bbl engine. I think H51 is AC. That's a pretty loaded and desirable A-Body.
There's a facebook group for fendertags. Barry Washington @Alaskan_TA is a very active poster, if not the founder. You can get more info from there.
(1) MoPar Fender Tags | Facebook

You might want to take the picture down, and make the VIN unreadable before re-posting. People have been known to steal a car's identity, leaving the rightful owner with a car deemed questionable.