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  1. 5.0/5.8 Engine Tech
    I'm getting ready to buy a good set of 1388 185cc AFR heads from a buddy of mine and was wondering if I was going to need a spring upgrade for this cam. And I've noticed that they're good to a 600 lift? XFI™, 236HR-14 Cam Style -Hydraulic roller tappet Basic Operating RPM Range -2,800-6,200...
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