Sorry Trev, I completely missed your post.
Yes regarding advanced timing, I recall the mechanic saying it's advanced as far as it can go.
I don't have a test light :(
That's what I did, and had it as, I'm sorta grasping now!
I did an unplanned stop over to work on the car tonight, basically put the new filter on, I bought the Z200 one, changed the distributor over to another one to see if that would work, no difference, changed the coil pack, no difference, changed the leads, no difference. :(
I then noted that I had some fuel coming out between a injector and the rail, took it off and noted rubber o ring needs replacing, so I put it back on and tried again, with still no start, actually ended up doing this to all the injectors as they all started to get this problem, I tried again just before and still no start, another fuel leak from the rail started so before I loose my sanity I'm calling it a night.