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Message: [QUOTE="kx250andrew, post: 246175, member: 27908"] irecently purchased a 97 kx 250. the engine is all stock with a delta force 2 reed setup, a procurcuitplatinum pipe and spark arrester.the suspension was done by factory connection.the question i have is concerning the powerband. it has a very strong mid range with decent low but it feels very weak on top. i was told that changing to the pro curcuit 304 silencer will give me more top end? also I will be replacing the top end shortly. I am a machinist an am wondering if there are any mods i should make to the cylinder or the head while it is apart. I am not looking to shift the powerband to the top i just want it to feel a little stronger up there without sacrificing the low and mid. Thanks for your input Andrew [/QUOTE]