Newbie here trying to finalize removal of A&A V-3 Supercharger from 07 Z06. Engine was dyno tuned by installation shop (S/C & AHP 116 cam, no headers) in Delaware in 2015. After I did s/c removal, engine actually runs good but I knew calibration couldn't be optimum. I know a wideband will ultimately be needed but as yet am concerned about where to place sensor since I don't have header bungs:
1. So my 1st question is how much of a compromise would using a post-cat 02 sensor bung be? They are tuned out.
2. My LTFTs are dancing -3s to -5s, so trying to figure best way to improve, wondering about condition of 02 sensors, thinking about swapping side to side.
3. I followed a couple tutorials on setting up histograms for LTFT logging & could not get the MAF version to populate. Is that function not available for Gen4?
Attached tune & log hoping someone might take a look & advise.