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Cam has 32* of overlap at .050 lift( In. open-Ex close) And 248* of duration at .050 lift. Should be ok for your 283 with some "sound" to it.
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56 Chevy Bel-Air 2dr. HT (purchased new)
71 Chevy Cheyenne SWB PU (502HO)
65 GMC short bed step--work in progress and my gofer
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