Well thought i would give an update, The motor has almost been pulled out.
Since August it had been having some oil pressure problems, Well as i was taking the motor out i dropped the sump "oil" and there was about a 50/50 ratio of Oil and Coolant! I haven't driven it much since the WCC track day in June and i had been planning a rebuild, So i didn't really bother with it.
Anyway i'm building up the current motor with either a 355 or 383 but off its nut. Probs on Methanol or something stupid since its never really driven anymore. Nitrous at the very least.
Anyway the motor i have going in there is a Roller Cammed 5L, With 10.1 comp, Ported heads and Manifold just till i can get the original motor sorted out.
I'll throw some pics up soon.