Well, someone pointed out to me that my MAP readings were far too high and he's right. Instead of having it connected to manifold vacuum I had everything on timed vacuum. At least that's easy enough to correct. Bought new vacuum lines and hooked everything up correctly this time: manifold vacuum to MAP sensor, timed to distributor. Didn't change the timing or anything else.
Still no way to adjust the TPS* below 40 DEG but thought I'd give it a try anyway.

Seemed unwilling to start at first, slightly lumpy idle afterwards. Had to give it more gas to keep the engine running. When it eventually died it gave of a large fireball! Had to jump out of the car, rip my shirt off and put the flames out, damn!
What's that all about?



*new TPS on the way but that's going to take until next month. Cost me 90 bucks including shipping and import taxes too. :-(