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Old 12-31-2014, 09:01 PM
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Rocky 389 Rocky 389 is offline
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Join Date: Feb 2004
Location: Bellevue, Nebraska
Posts: 310
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Yup.........it's kinda tame with the short duration but it'd make a good "grunt" cam for low RPM power. Be careful with the .489 lift. The retainers may want to kiss the tops of the valve seals at full lift. I'm running PC-style seals and I had to shorten the bottoms of my retainers about .050- .060" to keep the bottoms of them from contacting the tops of the seals. Your mileage may vary.
I set mine up with one Isky test valve spring just to check clearances and I'm glad I did. BTW, I also used a Lunati cam but it's got .490 lift on both intake and exhaust.

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