First, let me say I have never spent 1 penny with the Bartons. But my friend has a older Barton motor and The Bartons are always willing to help him.I have been around them enough to agree with David the car he drives probably gets worked on last. The way I see it if I was the engine builder my car should be quicker because of the know how not because I don't give everyone what I have. To me being a former racer that is a copout. How many can do and know what the engine builder knows. Also how many really know anything about the chassis setup.Get a hemi car and see how fast you can make it run and then go after the fast ones wether it is a Barton or Wescott car.