The quest continues. Had both GTXs at the river today. Both run close to the same. I've done the carbs on both skis and I continue to remove, work on and reinstall. I pretty much done all I can with the carbs. After much testing, trials, and more work we have determined the skis are running rich. Both high speeds screws are closed. If you open these any amount the ski runs worse. The 96 model is running 6500 RPM, down from 6800 when the weather was cooler, the 97 is sluggish mid-range but at least gets on top now bumping 7000 RPM. I will have a look at the rave valves, to determine if the 32:1 might have sludged them up.
All I can figure now is we need to drop a Jet size. With the density altitudes we've been having lately I"m not surprised.