[NC427]

Basically having my 482 running, running and running is the best the ever.....if it was not also the case once I turn the ignition to off position.

The 482 is a Keith Craft Shelby with a quickfuel 780 and has always been flawless for 10 years.

Engine has been regularly maintained and serviced. Nothing changed in set-up and now the above symptom: driving wonderful > stopping the engine > turning ignition key to off > (key function verified) > sometimes engine stops as intended but more often >engine keeps on reviving from very, very short up to 5 seconds > revs in low segment fully uncontrolled / fuel combustion’s carry on> sometimes ending with smoke leaving the hood scoope. Me behind the wheel with fear that this georgeous 482 might intend to commit suicide.....

We have been searching for any fault but so far not found one

Shall appreciate any hint