Hi guys Im sorry to barge in here but Ive been posting and not had any responses and you were talking about something l need to know about.Im looking at taking my 150cc to 250cc or as big as I can go.Then I was looking for porting and 5 angle valve job and cyinder head decking.My goal is to make a supermoto with the same power to weight ratio as a 5000 dollars factory supermoto for under a thousand dollars.Im doing very well as I'm at 550 and already got 17s with tires,fmf factory 4.1 with high flo header,a big brake and lever with master, and I'm lightenng it where ever I can find weight . please help