i had a similar fault on my 4x4 cossie this week-changed evrything including,inlet gasket,leads,plugs,cap and rotor arm,coolant temp sensor,coil,checked crank sensor wiring.
and all it was in the end was one of the multi plugs along the bulkhead-cleaned it out and it ran sweet.

the fault with that was it would sometimes start fine,and when you went to rev it,it was holding back.then it would take ages to start then run rough.
then sometimes not start,but had fuel and good spark-

just check all the multiplugs for cleanliness.

hope this helps
jay