hi bro haen, would like to know if u still do sell the 150cc vixion tuned up kit. this includes the modified piston, shaved block, speacial 5.8mm powet cam. may i also know what type of valve spring do u include. lastly, do you still have the "stock carb (bored out to 23.5mm)" if yes, im interested & wld like to know the cost + shipping to singapore. thanks in adv.