I have seen this problem a lot on the Quadrajet. When the car sits for a while, the gas get siphoned back down through the fuel line. I also seem to recall that there might be an internal plug that may leak gas into the manifold, draining the fuel bowl? You might be able to disconnect the line at the pump, put a cup there, and wait a day or two, to see if any siphoning is taking place? Just an idea.
Posted on May 26, 1999, 9:15 AM from IP address 209.240.197.26