Real Knock or Phantom Knock?

[caffeinetripp]

THIS is scary. 15 counts of knock. Starts around 2500 RPM in any gear, only after cruising for a little while.
Running a S16G, 550s, AEM wideband, OE boost gauge set for 5 counts of knock, 2G MAF, 255LPH fuel pump, stock IC, 6 bolt with 1G knock sensor, run 92 octane or higher from SA in Champlin. Recently threw O2 sensor, IAT, and barometric pressure codes. I contribute the MAF codes to one of the wires coming lose, have since fixed it. The O2 sensor code may be attributed to running rich for so long before fixing the boost leak.
Started happening more recently than before (warm temperatures?) after fixing boost leak at J pipe.
Haven't done any tuning as of yet with Link, just logging files. The knocking starts around 155. Any ideas? I posted on ECMLink and DSMTalk as well hoping to come up with a solution as well.