Hi Liam,
(Seems like all the experts are busy at the moment.) I'm not sure I understand the problem, possibly confused by the headline saying "not turning over". The engine will crank but not fire, is that right? And you've replaced the coil, or was it the ignition module (on the side of the distributor)? Does it have spark now? Have you had a look inside the dizzy, rotor OK, cap OK, no excessive play in the shaft, etc...
JH