Set your car up for corner exits and adjust your lines to allow as much throttle as possible (full throttle preferably) out of everything short of the 1st gear chicanes.
I lowered the rear height of both cars a lot so I could just nail it through the hard acceleration right handers without lifting - the key is to keep your drift angle to the optimum - if you're counter steering more than 60 degrees (900 degree wheel) then you're drifting too much/taking too tight a line.
I also found that both cars suffer a fair amount of front locking into the first chicane so moved the brakes back and adjusted my line to keep some weight over the front inside wheel - there are actually a few corners you need to do this on, and interestingly the lines are slightly different depending on whether you're in an Alfa or a Ford..
If you can trail brake then that will give you anything up to .7 of a sec if done at the first and last chicanes and over a second through the 2 fast chicane/kink things. The left hand part of nearly every (slow) chicane needs to be taken incredibly slowly so you can hug the left side of the track ready for the exit.
While you can put your front wheels on most kerbs, you want to avoid getting the rears over any kerb - this will unbalance your car and result in a big skid and slow you. On some corners I've clipped kerbs and lost half a second in the resulting drift.
Beyond that it really is all down to practice (And I admit the Rift helps a lot too)
My personal view after today's test session is that the Alfa's should get their own back here after a trouncing at Vallelunga - I found it the easier car to attack the course with confidence in. The Ford has potential to lap faster, but has a much higher workload here as it struggles to put it's power down as nicely.