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I purchased a set of CNC Indy EZ 295's and for the price, one would think you could bolt them on and go. Not so fast, says Dwayne Porter. He touched up the valve job and did a little hand blending and found about another 20cfm. I felt very good about having them looked over by a pro.

That being said, I think the fact that many of the bolt-on heads need to be checked first, is a shame. Takes away from the convenience of buying something bolt on in the first place. Maybe there needs to be stricter inspection practices before those items leave the factories.

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