It seems I have the same problem. The car idles at 2000+ revs, drops to 400, stalls braking downhill!! Generally runs like sh*te. Once being driven under load its fine! I wouldn't mind but it has just returned from a main dealership and is alegedly fixed!!! Wasn't this bad when it went in.
Tired of the thing now, does anyone know a good, honest person that can fit an appropriate new carb for me? I know its probably easy but, as an academic, I'm officially anally retentive in relation to engines!!! I live in East Sussex.
Would consider a complete engine swap if not too costly.
HELP!!!!!