ok so take off that stock intake throw a pod filter on it and throw a 66-69 jet on it then get a 17.5 mm carb and also get one of these http://www.mopedsonline.com/cgi-bin/shopper.exe?preadd=action&key=MOL1000098&reference=/cgi-bin/shopper.exe%3Fsearch%3Daction%26keywords%3Dtomos%26searchstart%3D0%26template%3DTemplates\searchresult.html that stock a55 igntion restricts ur rpms this willl help u rev out nad get more up top