Yup. We used to run a 02 500 ,600, xcr800, and imp 700. Back in those days. The 500s ran well also We ran about same as you with the 600. 6.0 seems to ring a bell but I can't remember all the details. I think it was 62/64 up front with epi pink , can't recall the secondary but I liked the epi orange twisted to about 12.5-14lbs in the snow on thAt sled. I think ride height was about 3.5 inches bulkhead to dirt maybe 4. 9811 camoplast with 192 ???? Ish g2 thruster chisels. 20/40 maybe for gears. Been along time. Lots of good times. It was either 02 or 00 we set the tar stock 600 speed record in brainerd. With a 600ves also. That has long been beat and probably is t even fast by today's standards. Things came along way. Et wise