looking for upgrades for my ftx got my eye on the jetpro pipe, but also looking at big bore kits and stroker cranks, i know you have to jack the barrel up with a stroker crank and check the squish, but what squish do you all run? on my 2 stroke race bikes i normly allow 0.9mm for rod stretch ect, also are the big bore kits/stroker cranks worth it? and the best place to get them from? cheers Joe