I've spoken to Mike Vine a few times about his crossflow turbo setups, his opinion was to keep the cam fairly close to stock but grind it to suit a turbo.
His focus was always drivability over bulk power as he wanted the cars with his kits to behave like they came from the factory, and he prefered stock diff gears 2.92 and 2.77 because of the crossflows good low down torque.
It's a shame his kits are so expensive for the power output, $4600 for the stage 1 drawthrough carb kit, 280hp (he's still doing them but i dont think he'll be alive for much longer he's pretty old now) they would make a great starting point for a custom setup as the manifolds are nicely done and his stage 1 kits are pretty much bolt on, tune and go kits.
The DJR Grand Prix Falcons used a developed version of his Stage 2 carb kits if i recall correctly.
The other downside to his kits is the fact that the supplied turbo is an old TO4B or TO4E depending on the kit, hardly what i would call state of the art these days.