I have to thank the forum members that pushed me in the right direction recently. I have my 108 stroker installed in my clone right now. It is a TB 108 on an ATC70 core. I modified the stator assembly to a 12 volt CDI and couldn't be happier. Runs great shifts great and most of all is quiet with no evidence of any issues at all. Lots of power and is under geared right now with 16/36. Again THANKS for the hard stands on correctly putting this motor together.