Those torque numbers never seem close to what the tranny can really do. I have seen a full weright 2.3 SVO with a stock v8 tranny run 11s, so those will take upwards of 400hp.
Keep in mind that the average 2.3T isn't going to be exerting massive torque until higher in the RPM range. The instant torque off the line that a V8 makes is what breaks parts, like trannies and rears.