I think ive sorted the "misfire".
Went to my local GSF in Norwich and got new leads, plugs, rotor arm, cap and to top it off four injector seals.
I mentioned before that the dizzy looked new, well the cap and plugs didnt look too bad either, but when i tried to remove the coil lead to change it, the top of the coil came off with it!-Oil poured out from it and i thought "YES" thats the problem.
Took it for a drive and all was fine then after 1 mile it chugged a bit and was running very lumpy.
*ollocks i thought and dipped the clutch and the engine stalled.
As the car was still rolling i dropped the clutch and it started again, it sounded quite rough again so i floored the throttle and revved the nuts of it and all of a sudden, it cleared itself!?
Its been okay ever since and im chuffed, ive since added some injector cleaner to the tank-alls well, for now..........