[COLOR=666699] Andy,
The Densecharger utilizes the stock MAF, however if you have a 89-91 the MAF is only a 55mm, so if your car is within these years you might want to pick up a late model MAF...they went to 70mm in 92, but you can use your old electronics in the new MAF. As far as the 3.8 NA, as long as it's basically the same set up for the air intake as the SC, it should work just fine, but I don't know how the fuel/air mixture would work out....like if there would be any questions on it running lean, or rich.
-Jeff[/COLOR]