20s for the Demon - how low can I go? (big wheel haters don't look)

Absolutely beautiful. Those are the wheels im looking at but with black centers (Boss 338 or Coys).
I have to see on this car to be sure but I think 20s and 18s go well together. They certainly do on that car, and others I've seen. Thanks for posting these. Definitely more inspiration. I have no thoughts of anything that trick but hope I can pull something off on a budget.