Does anyone know the HP output of an L28E from an Aussie 280zx?

Its just ive got conflicting information, not sure which one is correct...........

I've found a place where the HP output from an L28E in a 280zx is rated at 170hp

http://www.zshop.net.au/280tech.htm

But everwhere eles (that i can find) says the L28E engine in the 280zx was rated at 139hp,

Which one is correct?

If it's done the same over there as they did it here in the US, I would say that both are correct. The higher number would be gross hp and the lower would be net hp. They seemed to make the change here for the 1979 model year.