I have the z8 with a 250xs - so far my top speed has been 76.8 - i still had room to trim but wasn't willing to push any further. thats with a 26" fury at 3 3/16" below pad -
Found out the cable to the hot foot was not right. I was only getting about 3/4 of the throttle. Going out this week to see if it is going to do better than 64mph on GPS.