Data log files

Violater sounds like he knows his sh*t with tuning… At least I was on the right track… :slight_smile:

In addition to tunercats I use TunerPro (It’s free!)
http://tunerpro.markmansur.com/

If you end up still getting false knock from valvetrain noise (after adjusting rockers) I’ve heard of a lot of people having succuss with the LT4 knock module (GM part 16214681).