Problem solved, maybe not what I hoped for but solved never the less.
Oil seals had been fecked, something along those lines. Anyway, the engine would need re-borring and many other things doing.
Just bought a new lump for ?300, and i'm gonna straight swap it.
Gotta swap my stage 3 cam across tho, and change the timing, few things but hopefully should be done before next week...
Me a happy golfer again.
Now where did I put that beesting aerial?