Sadly, not as much as it was worth 10 years ago. Not as many racers/collectors as there were – we are dying and younger people are not interested in the old iron. I bought one about ten years ago, ran it for three years, restored it cosmetically and sold it, clearing $1K.
That being said, it all depends on condition. Lots to consider; ignition, compression, water pump, rust, paint, decals, etc. Guess it is worth what you are willing to pay for it. Good luck.