What torque can the diff take? Best swap?

[Icekottarinn]

I am modifying my Spitfire Mk3 to a Hayabusa version.
I have not yet started driving (hopefully very soon), but I am told the diff is not very strong. The Hayabusa motor is 170-180 hp and 130 Nm, will the diff be okay with this torque?
What options do I have IF I need a stronger diff? (Sorry for asking but I cant find the search option in this forum)
I know I can get stronger axles, but will that be enough?

Some say I can use the std diff, but I just want to do some research.....

...thanks

[mgb260]

Check out the Toyota IRS option. Use the Google search bar under the British V8 title.