Check the ALDA vacuum line that runs from the back of the intake manifold, which is on the passenger side of the engine, between the firewall and the back of the valve cover to a little metal switchon the firewall on the driver side. It is a clear line, or should be clear. Mine was broken and I was experiencing the same symptoms you are. I fixed it and now the car actually goes when you put your foot on it. If it is not clear, that is full of oil and grease. Clean it out. Mine was full of crap. I took the line off the car. Then I took a coat hanger, cut the hook part off and straightened it out. Then filed the ends so they weren't sharp. Then I cut a little patch out of fabric, and pushed 3-4 patches through the line, cleaned it right up. Then reinstalled. It helped tremendously.

Hope this helps.
Andrew

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