Re: IML: Edelbrock carb change
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Re: IML: Edelbrock carb change



The carb size question is misleading because it depends on the relative size of the primaries vs. the secondaries.
The Thermoquad carbs had very large secondaries relative to the primaries. I believe that they were  typically rated at 895 CFM, but most of that was through the secondaries which are not used in "normal" driving.
----- Original Message -----
From: "Klebert L. Hall"
To: mailing-list@xxxxxxxxxxxxxxxx
Subject: Re: IML: Edelbrock carb change
Date: Sun, 14 Jan 2007 10:45:56 -0500


> From: "Chris Strohmeyer"
> Subject: IML: Edelbrock Carb change
>
> Hi all,
>
> I've had VERY good luck on my 64 Dart with a new Edelbrock 650cfm about 10
> years ago. I'm considering one for my 67 Imperial 440 to replace the AFB.
> What CFM would you recommend? And do the electric chokes work well and how
> do they work?
> I'd like the car to run as well as possible so if more or less fuel will
> help then fine.

I have an Edelbrock AVS-clone with electric
choke on my '69. Works great, even though the
jets aren't quite right.
All it 'needs' is a 650, which is about what
the factory unit was. If you want more high-rpm
hp, then you might want a bigger carb. If it
has the HP cam or something like it, a 780 is
what's reccommended around these parts.
My understanding is that (for some reason I
don't get) the bigger carbs boost your high-end
horsepower, but hurt your low-end torque (at
least unless you change other stuff too), so
you might not want bigger.

-Kle.
'69 Crown 4DHT -----------------
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Fred Joslin



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