I have seen all sorts of figures on this.
The US version has about 110 HP and 100 FT/lbs torque.
I have seen claims that the engine had 120 HP and 115 ft/lbs torque.
0 to 60 is in the 8 second range.
That is provided the engine is stock, and fresh.
With a light weight flywheel, a cleaner intake system and a 2.25 exhaust system - the times and HP are much better.
Blue print the engine and with a few other mods you can be in the 150 HP area.
You have plenty of choices for forced induction now, and 250 HP is very attainable. Which puts you into the Vette killer class (10 lbs per horse with driver and full tank of gas).
Enjoy!