Tunnel porting and case matching

badazzyammie

New member
Joined
Feb 12, 2010
Messages
196
Age
32
Location
browncity
What gains do u get from this I will be getting the cylinders ported and the heads cut also I have a 02 srx the guy told me I'd get about 15 hp from his port job on the cylinders didn't say about the heads
 



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