Sorry I just got on here and saw your post. You just send Racers Edge your flywheel and if you buy the MSD and coil from them they'll give you plenty of support. They actually loaded a 700 raptor curve into the box for me to start the bike and it actually performed pretty well. I ended up adding a bit more advance though. Most likely they will say to contact me once you start setting up the jetting and timing curves. I do want to stress that this is not a GNCC or trail bike set up because the MSD people did not take into account that water can get into the box via the computer jack input. They really dropped the ball on that aspect of the design. Good luckCan they just mod a flywheel and ship it or do they need the whole motor to set it up properly ?