2000 lb, 500 wheel hp, Dart 340?

Sure, anything is possible. Speed is just a matter of money.

How deep are your pockets?

Yeah.

I'm still wondering if 2000 lbs and 500 hp in a Dart form is really possible.

The 1968 Hemi Dart was 3000 lbs but had a 426 iron engine and a few fiberglass parts. Shaving off 1000 lbs seems like quite a task.