| Re: Question about BBK cylinder and performance manifold
Quote:
Originally Posted by ducatilover  What I mean is the Takegawa manifold opening is 18mm at the head and the xr50 head intake port measures 10mm (i think). Is there a problem running that manifold if the diameters dont match? | Head should be 13mm, and YES it will run like crap. Get the TB manifold for the stock head, or ditch that slug of a head and make some power 
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