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I don't think stage 2.5 cams is enough cam for those heads. I've heard stage 4 is what you need.
You don't NEED a stag 4 cam for those heads. Most of the tests I've read about with the new heads were using comp 270 cams, which are probably about equal to a CMS stage 2. Read the description on the site about the cams, Jim states these are race cams. They were designed to get the most power possible NA out of the redesigned heads, and usually when you're designing a cam for that soul purpose, you're not thinking about the street manners the cam will have. You're most likely going for max lift and trying to create alot of top end power, sacrificing the low end that makes it a more streetable machine.
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