Originally Posted by
pete mcrash
sounds like someone has done the work themselves in the garden shed........
With a dremel probably.
Years ago like 20 odd I used to port two stroke bikes with my files
.It was always a case of take as much out as possible,AND they were always faster
.These days my mate has a flow bench
.You can totally ruin a head if you dont have a clue what you are doing.It does not allways pay to take as much out as you think.