Dude, high engine, direct drive, arc springs, wow, that's gonna be ALOT of fun to race man!
my dad recently got an old JD model 800 as a collectors, and when I saw it I was SHOCKED at how much sleds have changed, but some of the old design is still pretty cool, they had that centralized mass stuff figured out a long time ago.
: )
they may be called snowmobiles, but hiding behind that is a cheap excuse to not grass drag.