05-17-2018, 12:20 PM
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Yenko Contributing Member
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Join Date: Nov 2003
Location: NJUSA
Posts: 8,512
Thanks: 11
Thanked 3,063 Times in 934 Posts
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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) :-)
Last edited by njsteve; 05-17-2018 at 12:24 PM.
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