2007 trailblazer SS.
recently swapped LS3 heads, ls3 truck intake manifold, stage 2 supercharged cam from texas speed, long tube headers and exhaust.
no vacuum leaks, new spark plugs (checked a few times) coil packs swapped, spark plug wires new bosch up stream o2 sensors, nothing fixed it.
had it tuned on stock ecm. here is some live data if anyone has an idea possibly