Sorry for the "arrogance" britbrat, I'm sure that there are a whole lot of folks that could enlighten me in the art of engine tuning. I do not claim to be an expert engine tuner. I do understand the physics of how a carburetor operates, which simplifies the process... The GMS that I got did not need any surgury, just good old fashioned patience and some tuning know how. I am not here to bash OS engines, they are a fine product that are super easy to tune. I currently have a dozen or so laying around, I also have K&B, MDS, and ASP's that I got that could not be tuned and they all run perfectly. I am also the type that is strictly a kit builder. What good is this hobby if there is no challenge.
(By the way, I DO have a PHD in common sense, from the school of hard knocks)
-Tom