ok.. this is a perfect thread for me to chime in on.. i have a 392 cub motor on my play.trail bike... yes its fun, especially with a +2 swinger. i have 33mm pwks, cpi inframes, 20cc domes , pump gas, +6 timing. vforce 2's. lockout, and dunable overide.. power down low is not stump pulling impressive, but up top is insane.. with the timing and 33 carbs it is fairly snappy, not near as snappy as stock jugs though.. with my riding style it is ok for me..i always keep my bike on the pipe as much as possible anyway.. when u hit a big field or open space you can really get down... so far so good.. yea, it could use a little low end, but with the arm ripping topend i can comprimise.. its hard to get the best of both worlds with a 2 stroke.. give a little and gain a lot.. have fun with it.