All fuel is fine, lots of pressure right upto the plenum, and plug leads are all in order!
I think this engine has hads its time now, I have a 30,000 mile 4.2 with gearbox sitting here so rather than spend any money on it, I will just remove it and put the 4.2 in. I was just hoping it would be a simpler job rather than internal parts so I could use her for a little longer as I wasn't planning to put the other engine in for a little while.
Thanks though chaps, appreciate it