Since I had them still in a box and the time, I installed Yella Terra roller rockers (1.8 ratio) this weekend. Reached out BB to see if an updated tune is warranted. I also started the research on purchasing a tech 2. Wow, a bit overwhelmed on the amount of data out there.
What kind of data are you talking about? I bought mine from Chinacardiags, I think it was. If you get the Tech 2 be sure to get the GM software 33.004.