dohc heads for upright motors

[race 56]

Hi Im new to the site and I race superlights at Hartwell and was wondering about dohc heads for chinese upright cg? motors and gear options. To look at my chinese motor looks the same as my cb125 and there both miles too slow, thanks for any suggestions

 

[bradisfun]

post photos of your bike, this will help but other than that i dont think you can actually get anything like that... sorry

 

[Cactus Jack]

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