[Tongue Pirate]

I've used both Holley & Demon. They are both great carbs but Demon has a competetive edge as it was designed to be a better "Holley" out of the box. For vintage looks I go with the Holley. Anything else I like the Demon. Performance wise the differences are minimal in the seat of the pants but as we all know in racing sometimes you can't feel a tenth of a second. That said there are a number of aftermarket Holley's that will stand up to or possibly exceed any Demon in side by side testing.