how are you going to tune with 1 egt sensor anyways...pointless. What's the point in putting it on the #1 cyl when the other three could be running richer or leaner? I would suspect that someone running only 1 egt would just be using it to monitor things and at the collector would be the best place for it.
ninja edit: I guess it woudn't be pointless if you can't control each injector individually anyways...
ninja edit: I guess it woudn't be pointless if you can't control each injector individually anyways...