yes it will help file off about 1mm and also drill some small 4mm or so holes in the arms 2 holes in each arm is best this helps pick the reeds up so they open faster and you should gain some rpm.  i use a reed stop moded like how i have described with a set of my single stage cf reeds and its in my lil drity and its stock apart from the reeds and boy does the bike go compared to stock realy revs hard and goes great.
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Matty_C aka MC Race Engines
L7 pro cag motor got a sh1t load of mods like custom pipe,custom reed setup,16mm carby,moded reed block,mod piston,flow ported cases to work with a fcc,custom carb manifold,new spark wire,lightend fly,worked 13;1 cylender and dome.
the bike handels like a dream with a 1inch lift kit
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