I have a set of full flights that a friend of mine had and I tried to fit them. Wouldn't recommend full flights because the heim joint at the spidle wear out quick. The problems I saw were the rear arm on the top left side interfere with the expansion chamber. I have a dynoport so others might be fine. The other is the lower ball joint. The z 400 is a taper joint not straight. The camber can probably be adjusted pretty good with the threaded ball joints. The one thing with the full flights that helped with the mod was the inner heim joints on the frail side. You can shim them to fit. I measured the z 400 and the lt and they are very close to the same at the frame.