My time there of 1.35.0 was with standard internals and 2530's with RE55's and stock sway bars - so pretty much exactly the same as you have got. (was even making about the same power at the time). You just need some more laps under your belt. If you are talking about turns 1 and 2 they should be taken in 3rd along with the flip flop. Turn 8 is definitely 2nd and 9,10 are up to your preference. If you find you are off boost you'll have to get used to coming off the brakes earlier and driving through the corners. You'll only understeer at Winton if you dive into the corners too hot.
Set-up wise the ideal is around 3degs negative camber on the front, 1 on the rear and as much castor as you can wind into it. Toe should be pretty neutral. Tyre pressures try around 34 hot.
Stock cams are fine. There is a guy running 1.33's at Winton with your same turbo's and stock cams. As I said it will mainly come down to doing some laps. If you can try and get to the SAU round at Winton in July. Speak to Scotsman who has the smaller garrets that you (-7's) but otherwise the same car and get him to show you around.