OP, I have the same truck you describe, minus the Cali emissions. The 2.8L is gutless compared to an LS and yes, it can be a crappy motor if not taken care of, these engines are not hardy and blow up quickly if abused. I keep mine well tuned and it takes me there and back ok, occasional wheeling is ok too, but it is a dog in sand unless you keep the RPMs up. I too am gathering all necessary parts for a V8 swap but for me this process is slow...good luck.