Irony is this stuff happens pretty frequently in the motorcycle "drag race" world. Just out of dumb luck did I find a guy local to me selling a "Carpenter built" gsxr 1240... nearly $10,000 if you brought in a clean usable core (seller was asking $4500). Show up at the guys garage and look for Carpenters "stampings" on the head... no sign. Look at the case numbers... same thing. Dude starts with the hard pitch as Im leaving...Glad it only cost me 45 minutes of my time. He ends up selling it to some jackass who finds out it has all kinds of issues one of them being Bob Carpenter never touched it...lol. I messaged the guy the sellers home address.