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Old 12-19-2005   #5 (permalink)
DickBender
Senior Member
Formula Extreme
 
Join Date: Feb 2005
Location: Lithgow Australia (Nowhere near Vladivostok)
Posts: 678
keef,
To get the best out of a 904 you need a NARK. To go to all the trouble and expense of big bore and not NARKing would be like adjusting your throttle so you couldn't use it all.
Get hold of a pair of thruxton needles (dealer only) and a few jets start at 150 or 155 mains and 42 pilots I'd say at a guess. Tyen when it's run in get it on a dyno.
Darcy :chug:
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