so i have the takegawa 88cc bore kit now and i just dont get the power i need out of turns and on throttle roll. im thinking about buying the 106cc bore kit. i was just wondering should i get the crank with it? or is stock good enought? and aftermerket head? i just want to know what is the best set up and most reasonable price wise. if anyone has one for sale for a good price let me know!