I had posted here before about the sudden stalling my 380 sometimes does after the engine is fully warmed after I place it in gear or stop at a traffic light. I have been told it could be the idle control valve.... checked that and it is fine. Idle goes up when it is disconnected. I have not yet tried to check for vacuum leaks, as mentioned here and recommended to me by some here. I was told to start the engine and spray brake cleaner around (on cold engine) to check for leaks.

Well, to update, strangely, the engine has NOT been stalling, but when I first start it of the mornings, after about 10 seconds, it starts missing and "choking" itself and puts out "gas" (also known as carburator smoke on older carburated cars) from the exhaust. Its like it is getting too much gas. If I hold the accelerator steady when in park, it misses, but upon acceleration, or even in gear at steady acceleration, it smooths out. It will do this now until the engine almost completely warms up. It did this slightly last winter, but only if the temperature dropped below 40°. During the summer it did not do it, but it was doing the stalling. Now the stalling is gone, but it is running very poorly when the engine is cold if the temperature drops below 60°, which is has been doing for the past few mornings, since summer is winding down. I have a feeling it is only going to get worse and worse.

Does it sound like this could also be a vacuum issue causing this as well, or could something else be causing this?

Thanks in advance!