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Posted by: reconranger
I don't see an exhaust in your list of mods???????
Stuff like porting will only gain you a little, and if it isn't done right sometimes it can do more harm than good.
Posted by: 2FAST4URASS
No more than you have done i would wait and go with a 440 kit the 440 makes the 400 a lil monster..
Posted by: RustyRanger
I was wondering how much better my 406 ex would work that has a few small mods. I want to port and polish it. How big of difference will it make?
