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Old 10-18-2004, 01:30 PM
PJS50's Avatar
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Join Date: Jan 2003
Cobra Make, Engine: SPF#131 520 cubes; 650 HP
Posts: 108
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Default Demon or Holley Carb?

Howdy all,
I wanted to get some opinions about the 2 different brands of carbs, even thought I know they are a lot alike in a lot of ways...
I am looking to get rid of the Holley 850 CFM that I have on the car now and getting a more "correct" carb for my setup.. I currently have a vacuum secondary, single pump, electric choked model and I was thinking of going to a Holley HP series 850 CFM to get some better airfow (I have some aircleaner/airhorn height issues on the 460 that is in the car and I believe that it is causing me to experience some off-idle throttle lag because of poor airflow, among other things).
I am very familiar with tuning a Holley, and people that I have talked to say that if I like Holley tunability, then I REALLY will like the Demon carbs...
Realistically, the major difference between the Holley HP and the "Mighty Demon" series carbs seem to be in the jetting department.. The Holley has fixed sized/replaceable jets and the Demon's metering body basically makes this carb have "adjustable jets".
First off, is my quick 2 cent synopsis of the 2 brands correct?
Second, the 2 carbs look to be about the same height/size. I assume there will be no "fit" issues? I can't afford a taller carb...
Third, are these Demon carbs as good as some people say?
Thanks for the opinions....
Pat
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