I am a Ski-doo guy, but I thought you Arctic Cat people would like to see this. I spoke to a guy who races asphalt drags. Supposedly, they ran an F7 to a best of 10.54 @122 mph at Union Grove, WI. Elevation there is about 700 - 750' above sea level, I don't know the temp. or barometric pressure. It was fairly stock, but obviously geared for 1320', and was running a narrow 10" asphalt track. I don't know if he was telling the truth, but I was impressed with those numbers. Thought you would like to know. He also said his ZR500 best was 11.90 @ 103 mph.