I'm probably asking something which as been asked before, but I'd like some feedback.

A year ago, my mother who owned the 960 before started the car, moved it in a 20 second time span. Shut off, went back to start and no go. I went up to look as she said it was turning over fast, so dreading a cam belt in two, i stripped the cover back and ... oh.. cam belt on.
Engine stunk of petrol. I tried to start and no go, so she called for assistance.
The mechanic who came out quoted an old chestnut - oh these cars have a tricky management and it need 40 plus seconds of idling before you contemplate switching off.
So he cranked the car constant for many minutes till it fired.

My turn to have the fault today. I moved her last night, Today I turned her over, she fired then cut out, with a very high speed turn over and stink of fuel. From the mechanics quote, I whipped out all 6 plugs, found them indeed wet, so I cleaned them, left the plugs out for a hour to try and clear the flood. Rebuilt, and bugger me. Still turned over fast!
So I put my battery power pack on incase of ecu brown out and turned over. Nope, still fast, so I cranked it in 20 second bursts. Rested, re cranked and it took, then cut out and cranked over fast. Eventually it went and idled rough. Took it for an italian tune up and fault clears.

Any ideas? A site I read mentioned valve issues. I run Shell V-Power 99 octane and a cone filter for humf and economy.

A friend was with me, and from my car list, I come from a vw back ground and he said was it the cold start valve enrichening the mixture too much causing bore wash as he had that on audi 100.

The only other thing she does when cold is rev to 2000 revs when you change gear, but only when cold. Once warmed up, a steady 750 is there. She runs well, pulls well, does 25 mpg.