Well my situation is that some people seem to think that with a mild cam, you don't need anything replaced to include springs, headers, rods, blah. If I decided to get this thing tuned with the mild cam that's apparently in it, what would I gain? (hp? mpg? smoothness?) Or if I put the original back in, would it be likely that I would even notice the difference (other than in mpg) since nothing else was added?
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