I'm throwing in with etlsport - I think your problem has to do with fuel pressure VXIW...

After getting supercharged a couple of weeks ago, I was having problems with the engine not wanting to start right away. I was advised by two other supercharged VXers that they had the same problem after installing the S/C and it turned out to be the fuel pressure regulator. I have not done anything about it yet, though.

Then in the last three days, the engine has been starting fine, but I have experienced the same hesitation when getting on the gas first thing in the morning as you just described. I have to back up our driveway to the road, so it's a high-load situation, and the engine hesitated and wanted to die each time before "catching" and going about its business normally.

So with all that in mind, I think that my problem as well as yours has something to do with the fuel pressure regulator. If it keeps up that is... that kind of thing can happen sporadically, as it has on most of my vehicles.