Got Shell 93 Octane and now barely idles 1973 Dart 340

[QUOTE="But I doubt that is the problem in this case; the change in running characteristics in the car were too great, unless it is was water or trash in the fuel.[/QUOTE]

That's what I am thinking that it was just a coincidence. Most likely a vacuum leak since it looks all goofy with the multiple gaskets, RTV and the adapter or an issue with the carb itself

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