Back in the day when I was a young foal, I got given a shot of an HF turbo. Not at Integrale, just the 1.6. At the time though, probably the fastest thing I'd ever driven. Just a shame the back of the car didn't want to he driven in the same direction as the front. Sure the suspension bushes were made of swarfega or similar.
Only electrical thing that I could confirm worked, was the spark plugs.
Learned a lot about italian cars that day. Still got the prejudices.
It was jobby brown too.
This has certainly moved on from 'Anyone fitted these'.