Holley or Demon??

[blackace]

I see a lot of people are partial to Demon carbs over Holley's. What are the pro and cons of each and why are more and more people going to Demons over Holleys?

 

[demon seed]

I used holleys for years and 2 years ago I thought I'd try a Demon. Their venturis were smoother and I just love the sight glass that you can see the fuel level without pulling a plug and puking gas all over a hot engine. Maybe Holley has gone to sightglasses now, to late. I've heard some buyers of Demon's found crap in the float bowls right out of the box but I haven't. I started with a 750 vacuum secondaries and then switched to a 750 full mechanical D.P. to get rid of a off idle stumble. I had to rejet both carbs once, down one size, other than that no problems. Actually I did have a problem with the first one, I couldn't control the fuel level in both bowls. Hooked up a pressure guage and was seeing 10 psi just after startup. Fixed it with a regulator set to 6 psi.

 

[moper]

The only problems I've had ar elack of experience with them..(for me..) They take holley parts, and look like holleys, but they arent. They like to be what i'd call very lean. At least that's my experience so far. Where in a similar sized Holley I might run 78 jets, the Demons like 70 or 72s. That's because they are really really good at what they do. But that translates into very finicky for me. Money wise, I'd rather just run a Holley. They had some serious problems with crud in the bowls brand new before, but I think that has been addressed fairly well..I dont hear a lot about that anymore.