Thanks for the replies. I got the cam swap done and retained VVT. It runs ok on the stockish tune but LTFTs are running -9 with lightdiving. Haven't opened it wide open yet. The wideband is still installed in the truck so i'm thinking about tuning the LTFTs based on the factory narrowband to get me closer before I go to the hastle of unwiring the wideband from the truck anbd reinstalling in the tahoe.

Joecar, thanks for the replies. I'll work on my file with those hints. I think my troubles are that I have both an E38 and a LS1B controller so my pids get confused. It's a bummer because for the longest while I had a good LS1B calc_pids file but it's been lost.