Having an issue with KR in the 1600-2400 range at moderate throttle. I've removed timing, added timing with no real change in KR. LTFT's are in and around +-5%. 93 Octane. I don't hear any knock (not saying it isn't there). Also does not have KR all the time in those areas.
Truck is 05 2500 DBW Lq4 6.0, 214/228 .550/.550 117 +4 camshaft, Stock 317 heads, shorty headers, new ls7 lifters, 7.4 hardened pushrods, che rocker upgrade, new knock sensors and harness.
Thoughts?
Knock.hplcambasetune.hpt