Hi, fellas. I´ve never had porting&polishing done and so I´m wondering if any machine shop is going to be able to do it properly. I know if I ask them, they will all say they are professionally prepared to do it, blah blah blah. When it comes to cars, we all know too well not everything said is necesarily true. I know it needs to be done just right, or else you´ll end up with worse performance than before, instead of a better flowing surface. If anybody is wondering, its for a M30B35. That said, is there something other than experienced personnel that I should look for in a shop if I wanted to perform such a job?
Thanks!
Thanks!
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