how could i get my sled to do ski stands? isnt it something to do with losening the strap on the suspension? if so wouldnt my track hit the top of the tunnel?

If you mean 'wheelies' get a set of transfer rods. I have a set of Bender rods on my machine, the best thing about these ones is that they are very easily adjusted from 'fully coupled' (no wheelies - better handling) to 'uncoupled' (HUGE wheelies - can't steer... :p )

ski stands???? wouldn`t you need really big ski brakes or maybe try hitting a 2 foot concrete wall at 50mph :D

just loosen your front limiter strap all the way and hit the gas