Besides the idle speed screw there is also a fast idle adjustment screw which may be the problem. If you're having gas soaking, I'd rebuild it. It should be an Autolite though, not a Holley. If it is a Holley the bowls come off each end with 4 screws, the Autolite has a top piece that comes off for access to the bowls. It actually looks like the new Holley carbs and I wouldn't be surprised if Holley used it as a model. The Autolite came in only a few sizes the largest I believe was about 485cfm, they work well and are almost trouble free. If it's a Holley post the #'s on the choke horn and it can be identified.
[ October 23, 2002: Message edited by: woodz428 ]</p>
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