Hi all,got the chance of a 01 200 carb,to put on my 01 220,is there any thing i need to know before purchasing,ive just put a Gnarly on it and its running really sweet,so would putting a 200 carb make much difference,or is it a waste of money :ugg: also my Gnarly only has 073-020057 on it so how can i tell whether its a rev or a torque pipe,look forward to some replies,barrie.