mick at total traction would do it for you
they done all the work on my nsr basically the same set up as you will have
they also prep my race bike
there a top bunch of guys
mick been building race engines for years
nick raced a tz 250 back in the early 90s
gary raced at mro 600s and won races
nick built and raced rickman kawasakis in the 80s

there in colchester so not to far to travel
give em a call 01376 794700 micks the guy you want to speak to tell him i reccommended them
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Half the strokes, twice the fun