I've been an avid 3800 fan for a little over a decade, having loved and lost a 1997 Park Avenue Ultra and now owning a higher mileage 1996 Riviera (Supercharged). I've been weighing what should be most important for me moving forward with customizing this vehicle.
I work on a racing setup with a 3800 gen 1 swap convert with a Gen 2 ECU using the MAP of the gen 2. I use a vacuum hose and hooked up my MAP to it instead of drilling a hole in my actual intake manifold.
I use a high flow Fuel Pump ... I already use this one for a GM L67 5.3,