05 C6 LS2 cammed....made 2 runs...1st run with hotter IAT had zero KR and zero burst retard...2nd run had 5 deg KR when I went WOT at 2000rpm (which is how I do every run) and declined with RPM.
Pic of scanner with the timing retard circled in Yellow.....and I will upload tune and log. Weird.
Actual outside air temp was 25c (77C) with the humidity over 30c (80's F!!)