Quoting prove_it:
IIRC, it's a 7500 redline, 6k studderbox with 680cc injectors, 2G mas sensor tuned for 91 octane running 10.5:1 fuel ratio with the knock disabled at lower rpms.
I don't think it has knock disabled at lower rpms but instead the boost gauge repurposed as a knock gauge.
The chips with phantom knock code usually say so.