My wife is a small lady. She feels my 400 is too big. Not in power but in overall size. She can ride it and a 450 but she feels the frame size is just too big. She rides a blaster. She loves the size. She can ride the hell out of it. She wants/needs more power. I was looking in port polish and poss stroke it. Now the port polish mill, will this blow up in sand? People tell me yes and other people say no. I think the stroker is too involved for me right now. Would you port and mill the head? She loves her balster and doesnt want a new one beacuse of the size(frame) not engine

 

From my experiences, a port and polish is the most reliable mod you can do. If you mill/shave the head that will help some, too, just get someone that knows what they are doing. If they shave it too much it could blow up the engine. While you have the cylinder off you could put in a lightweight piston and maybe bore it a little until you put in a stroker.