So this is my first post, looking for some info on doing an LS swap on my 98 Firebird L36/A4. Some things I'm looking at specifically are things related to the ECM/BCM, going to an E38 to run a Gen4 engine and possibly retain VVT without AFM. I'm worried about getting everything to work together so that I can retain factory gauges, though I plan to swap to a later V8 cluster. Also worried about other electronics issues I may run into. I've done some looking around, but haven't come up with any solid info on making it work together.