got a pic somewhere on the net I can take a look at?    
I only need to take like less than 1/4" of material out.    
This was done on a mill.  I know I won't get anything close to that on a cutting tool, but it's not much   
http://bucky.kicks-ass.net/car/blower/compare.jpg   
I'm also not going to remove the bar either.  Just port the outlet and possibly the inlet a little.