[fpv_gtho]

Most seem to think its 265kw, thats what it is in the US, and its not a case of Holden/HSV thinking one particular number looks better on the badge compared to another, as is the case with the Z series HSV's with the LS2.

As for the throttle body, 90mm should be plenty. Even GT's only have 75mm throttle body's, although that says more about FPV's methods of tuning really. 75mm's pathetic