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    1984 350 block with vortec heads

    Bought an 84 k5 blazer that's got a rebuilt 350 in it that's been bored 60 over with an RV cam and flat tappet. I've got a set of vortec heads from a 97 half ton Chevy sitting around. Would it be worth it in terms of power to have the heads gone through (decked, new valve guides, cleaned up) and...
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