Thank you peps!

Spent the whole of Saturday working on it, had to change the plugs and leads. It wasn't ever so difficult, although I did spent a good two hours modifying a spark plug socket to enable me to get it on the plug! As you can see the plug is sunk into the block, and the head studs/nuts and exhaust and cooling pipes make access a little on the difficult side.

Anyway, got the old plugs out and leads off:

And new plugs (NGKs) and leads (Magnecor competition) on:

The car ran much much better after this, especially pottering about out of the power band. Sounded and drove much smoother. Unfortunately whilst doing this work I noticed that
both exhaust manifolds have cracked!

Both in the same place too. At first I was expecting a big bill (brand new they are £300 each), but then thought I should be able to get them welded. After enquiring on PistonHeads I found out they are only mild steel, so I can weld them myself with my MIG welder!

Just going to be a weekend job to get them out, mended and put back in!

Oh, changed the burnt out wiper hose whilst I was in the engine bay for a new section and windscreen washer work fine now!

The main priority now is to get the drivers side window functioning correctly. Had the door card off again last night to change a couple of the connectors for the weatherproof ones I got from Vehicle Wiring Products last week. The are very good connectors, I can see them being good for many many years yet, but a bit fiddly to put together. Anyway, changed them and it didn't do much (aside from making it work for all of 20 seconds). After more investigation I found the exact point of opening the door at which the window stopped working, so I now know its a break in the loom where it passes into the door from the body. I've been told there is a main connector there, so thats my job for tonight!