I had the rare pleasure of seeing and hearing 917/30 when it was in a collectors hand in NC... I agree WOW - soul piercing sounds. Never heard anything like it ever
Great piece, although maybe I'm now showing my ignorance: it lists the FE motor as one of the great ones, but the accompanying video shows a Mk1 car than ran a small-block. It was the Mk2s that ran the big block. The video certainly doesn't sound like an FE