Sorry I have not been responding to many posts, we picked up our 600 REV HO. *It is the best rendition to the lineup since the 670 mach 1. *After 3 hours of testing and I mean 3 hours we were in the low 5.8's with 60' times equal to our 800 cat. *we have 3.8 miles on the sled and about 45 min of run time. *Still need to get the timing burned out of it. *we were 25 lb over weight and factory jetting. *I see steady 5.6's from this machine. *The bottom line is the owners of this sled should be very happy.

GLH

This looks good. *I cant wait to try mine out as well. *

Its at my dealer i just didnt pick it up yet. *Maybe ill have to give him a call.