Was this a '99 block, you started with? Did you run it in on the bench, or are you just plunking it back in? Did you change (or clean up) any oil ports? With the reported oil starvation issues in the '99s, opening them up some would have been prudent. One more thing, how dirty was the intake and all? (I don't care for this EGR/Cat setup-suspect it takes too long for the cats to light up, dumping more carbs back up top) Cool, you're almost rollin'__Wayne