Bleeding - it's a right pig
From what I remember we ended up with the back of the car jacked up as high as we could get it.
The other things reputed to help;
Longer than usual hoses on the header tank and lift that as well
Some one mentioned but never fully described using a 2 ltr garden spray the presurised contents getting injected to force out the air (not seen this and not sure I can fully picture it

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