I see you have 2.8, that is quite similar?

I changed the Idle Control Valve, but it was a cheap one. It does climb very slowly sometimes when accelerating in 4th/5th gear, also I have noticed that sometimes it depends on how I take off, sometimes it will be ok, sometimes even 1.2l Peugeot will be faster.
Here are some pictures of where the vacuum tubes go;
And here are two videos of what I mean about them revs;
http://youtu.be/yR3lCYrDc88
http://www.youtube.com/watch?v=VGzPFJ0BItg