Thanks for the reply Andy.

The crank was done by chris applebee and I checked the runout myself when I got it back, it was perfect.
I forgot to mention the wire splice has been done. Also i measured the clutch plates and they were in spec but I suppose it could still slip.
The plugs are new as are the ignition coils and plug caps, the loom is in great condition so maybe pick ups although they read in spec. It will be
hard to find a miss when i cant even feel one even on top gear roll ons from 4 thousand revs.
Whe i work out how to do it i will post a better pic of the graph the air fuel looks all over the place to me but I dont really know what a good one
looks like.