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I have been hearing the same thing as nj85z28 has. I have been doing my research, but still do not understand how just switching out the cam shaft increases preformance. I thought you would have to switch/rebuild the heads, replace the rockers, put in new pisonts, rings, etc. to get a real preformance gain from the cam shaft. Maybe I am just missing something (and I'm pretty sure I am lol). Could you help me out with this one?
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