Ok Shawn, I gotya. Yes, the plastic cover, over the fuel rail say'* 3800, just like all twelve of the other buicks I have owned. I have never seen one that say'* series 2. But thanks for telling me that. I really appreciate your help here. I have found a couple of videos for replacing this assembly on the internet but, they are completely differant than what'* under my hood so, now I can assume that they were series 2 engines. I really need some detailed instructions for this and if possible, a diagram. I attempted to remove it a couple of days ago, by removing the power steering pump, alternator, and (I think) all the bolts but, I ran into a couple of steel? pipes that I did not understand where they went and something else that I wasn't too sure about so, I put it back together and started doing some research. I can tell you also, that the coolant lines do NOT run through the unit, like on (I am supposing) the series 2.
Please do your best to get me set str8 on this project.