94 kdx 200 220 kit questions

[GreenGoblin22]

So i have this 94 kdx 200 and i looked and it says that the stock bore is 66.0 and i am wanting to look into the 220 kit. Are the 220 kits a good upgrade on these bikes. All i do is trail ride and cant decide between the 220 or sleeve it back to to stock bore. Anyone with the 220 or know about these kits could please share info i would appreciate it. Also what size bore is the 220?

[raygun]

I can't help much but stock bore size for the 220 is 69 mm