>From: "Kelly C. Hanna" <[EMAIL PROTECTED]>
>Date: Sun, 30 Jun 2002 17:02:59 -0500
>Subject: Re: [Chevelle-List] Get a howl from a Holley?
>
> and see what he says (my Edelbrock 1406 is the howliest I've
> ever heard since it doesn't have the flapper that the other
> carbs do).
Did you remove it? My 1406s (1 on the truck, 1 parts carb) have
counterweighted secondary air valves that sit above the secondary throttle
blades. The valve is apparently sensitive to engine vacuum but
non-tuneable unless grinding metal off the weights is an option.
Brad O.
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