Ok. I want to bore my Dvx(z). I was thinking the 463cc kit. (1) Has anyone ever heard of this being used? and if so (2) Do u need an aftermarket carb to support it? Or is the 440cc preferred. Also I'm wanting to buy like some old stock cylinder and head, so I don't have to bore mine and can keep a stock set up for spare. Does anyone have a suggestion on were to look. I've tried ebay and no such luck. Thanks in advance.