I sold this Vincent / Norvin project a couple of years ago to a guy named David. I was under the impression that the engine was built and ready to go, big mistake. David rebuilt the entire bike and found out that the engine, who was built by a supposed Vincent guru, was junk. He said the only thing he reused was the shell of the engine !!
He really did a nice job on this bike and is commended for putting another Vincent back on the road.