That's good to know, thanks Cian! 170bhp out of a 1.0 sounds mental, i'm intrigued.
Dave - Ah, in my mind the crankshaft, con-rods, pistons, oil pump and sump are all a part of the block.
I had to go back through my photo's but the injectors appear to be in the head rather than manifold, i'm happy to use the original head from the car, there has been some comment on facebook that I may even suffer from using the free-er flowing 531.
The hall sensor is in the dizzy, I remember this from replacing the dizzy cap - I just jave a fuzzy memory of a slightly dodgy wire or something that I couldn't tackle at the time, so it'd be good to put that to rest.
No clutch to worry about is great. It all sounds like good advice Dave, thanks.