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Old 07-29-2007, 07:15 AM
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Holley vs Demon carbs

On a small block 383 Chevy in a Gen 1 Camaro. Any opinions on which is more streetable and better in the 1/4?

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Old 07-29-2007, 07:54 AM
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Quote:
Originally Posted by ernkazern
On a small block 383 Chevy in a Gen 1 Camaro. Any opinions on which is more streetable and better in the 1/4?
For being a streetable carb you should select one that has vacuum secondaries.

You will not need a "double pumper" carb on the street.

As to make and model; don't overcarb your engine. This is a very common error for many when selecting a carb. All the major manufacturers make excellent carbs. In my experience, I believe that the Holley carb is easier to tune than an Edelbrock. The Edelbrock is cleaner though if you are changing the jets or metering rods/springs as you do not have to drain the gas. With the Holley and Demon carbs you have to remove the bowls to change the jets and this is very messy and can be difficult to get to the bowl mounting screws. I also think that for the same size cfm carb, the Holley will outperform the Edelbrock. Currently I am running a 625 cfm Road Demon carb on a very mild Chevy 350. I haven't done any final adjusting yet but so far it is very responsive and starts easy.
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Old 08-01-2007, 08:06 AM
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Quote:
Originally Posted by ernkazern
On a small block 383 Chevy in a Gen 1 Camaro. Any opinions on which is more streetable and better in the 1/4?
In my opinion they are both very good carbs I have run both and am currently running the Demon six shooter set up and am very pleased I know that most all parts on my demons are interchangeable with the Holley's. I would just go with what fits your budget they are both very street-able carbs just do yourself a favor and contact their customer Tech support for help on sizing that is the most important step.
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Old 08-01-2007, 08:14 AM
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I agree, both are very good carbs, just go with what you can afford and don't over-carb.

Vince
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Old 08-01-2007, 11:29 AM
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Quote:
Originally Posted by ernkazern
On a small block 383 Chevy in a Gen 1 Camaro. Any opinions on which is more streetable and better in the 1/4?
I have a DP Demon on a strong 355 SB and it works pretty good. However, I have also used a Holley vacuum secondary carb (3310) on a SB and a BB and that carb has better street manners by far.

Go with a vacuum secondary unit no larger than 750 cfm.
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Old 08-01-2007, 12:44 PM
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Holley vs Demon

Thanks for the replies. I'm running a Holley Street Avenger now and it's great on the street. I basically wondered if a similar Demon with an electric choke and vacuum secondaries would be worth anything in a 1/4 mile. It looks like it wouldn't be any better so I'll just stick with my Holley.
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