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Old 05-17-2018, 11:20 AM
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njsteve njsteve is offline
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I was googling and found this: http://www.hotrod.com/articles/hppp-...-duty-formula/

So now Hotrod.com has a feature on all the SD455 Formulas sold by Suburban Pontiac in 1973. (All two of them) :-)
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Last edited by njsteve; 05-17-2018 at 11:24 AM.
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