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The flow numbers appear quite a bit different than normal, since they were tested bare with no adapter on the intake or exhaust. But with SLP's modifications to each of the heads, the results were just about even. At low-lift between .100 and .200 inches, and again at .600 inches, the L92s had the clear advantage on the intake side. Meanwhile, the AFRs outperformed the L92s at mid-lift, before surprisingly peaking at .500-inch lift and not .600, like the L92s. The L92 had the best peak flow at 287.9 cfm, but the AFRs weren't far behind at 283.8 cfm. I'd call that too close to call. On the exhaust side, the AFRs are clearly dominant, though, so it's still anyone's guess what the dyno would read. One thing to consider is that with valvetrain deflection, the valve will not actually open quite as high as the cam commands. But then again, flow isn't everything. View Related Article
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