1978 olds cutlass
Sounds like the idle circuit is plugged in the carb, time for a carb overhaul. Make sure the kit has ethanol resistant components.
products like seafoam added into a tank of gas can sometimes clean out the carb jet enough to avoid a total overhaul... worth a try. seafoam has cleaned many a nonfunctioning carb of gum residue from old or bad gas...
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