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In my opion, z28 top dog will either have 5-6 pounds boost and no need for forged internals..possibly an even higher top end model with forged and 10 pounds boost?? But to answer your other question I don't think forged internals will be offered for a base model v8 with forged internals...there is no need on a N/A stock motor for them and GM is doing everything they can to pinch pennies here.
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