Keep us informed about this fix, sounds like that was the problem(like i said...not impossible). I know these car are expensive to fix, but they are worth it...:)

G'day gents. The car is now running -Not great, but it just needs more adjustment with the shark tuner. O2 sensor may be bad as a result of the blown head gasket (and a cracked cylinder) from the original motor, soaking in coolant for several months. May end up replacing with a wide-band O2 sensor anyway, in order to take advantage of the extra boost and bigger injectors. So in a nutshell, the injectors were bad. Threw in eight replacements, and it started right up. Just goes to show, that despite how unlikely something may be as the cause of an issue, investigate further to verify whether or not it IS the actual issue. I hope all experience gained here helps others who may find their 928s in a similar situation. Thanks for the help from everyone!!!

yeah
 

great news! You should post some videos of it running on youtube:)

This is great news.