F1technical.net

Did anyone else notice the front tyre cambers on all the cars, particularely noticable on the McLarens, were very high?

McLaren seems to run harder rubber than others. The camber setup may be Michelin's recommendation for that particular compound.

I think if you make the front camber high you´ll loose stability but the car will have better responce in the corners.
Suzuka is tight circuit so you´ll need some responce of your car to go in those curves like you should.

Depends on the tire's camber thrust generating capacity and general camber sensitivity. For the tires I run I use enough negative camber to offset what camber change I'm going to see in roll on a particular track.