Searching the forums gets me thinking I have a vacuum leak somewhere:
Quote:
Originally Posted by ChevLoRay
If you suspect a vacuum leak, simply put your hand over the open carburetor. If there is a leak, it should smooth out. If no leak, it should die when you deprive the carb of any air.
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The motor ran great in the 79 suburb I pulled it from.
I removed a lot of emission hose garbage, and the engine idles out smoothly when I close the butterfly as in the pic I posted above.