Re: Anyone have experience with head porting?
			 
			 
			
		
		
		
			
			the Cat exhaust valves will have smaller diameter stems so guides will. Z have to be pressed in, again I will bring up that Magnum valve diameter are plenty big enough and that's something you need to se for yourself.
		 
		
		
		
		
		
		
		
		
	
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