Your right, the data says its lean. As nice as it is to be overloaded with data, sometimes you have to do what the engine wants. Plugs looked perfect as well as the exhaust ports. It was a Q950 Stock jetting was way to rich, I would have liked to try a 1050 but didn't have any on hand. This is for a 100% street car 68 Road Runner 4 Speed, it should be a lot of fun