vmax 600 porting

Sport Tech makes porting templates. They are made of a magnetic material. Instructions tell you how to set them in the bore. Then you scribe what is to be cut out. I can post pics later.
 
i've used their stuff before. it does work. sometimes i don't go off exactly what the template says, cause i don't like it or agree w/it, but for the most part they are just fine.
 


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