3.4 stroker I believe, but that won't affect peak power much
It was only a ~6500 rpm run apparently as the dyno wouldn't run past 230kmh for some reason.
Unsure of rear housing, but assume it's a bigger one....
3.5" exhaust, with gate plumbed in, so, far more potential to be had yet.
Also, I ran my car and it was fairly consistent with how it was tuned on another dyno.