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#11
05-21-2012, 09:58 PM
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THanks for the info guys.
I do see the 850 came with jet sizes almost 10 larger than the 750 stock. 70/80 with power valve in front only. 4779-2 80/80 with power valve in both. 4781-2 ( 10 larger in front, added PV in rear). I actually use maxjet jets, which are supposedly more Precise. They size their numbering goes along with orifice or Holley flow equivalent or something like that. According to maxjet it 93/97 would be about 83/87 in Holley size. But who knows if it works, it works. I will try it.
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 1979 Trans-Am. 3900 + lbs. 3.42 gear, 10" 4000+ Continental, 280 cfm e heads, performer rpm, 750 Holley, 242/248 HR cam, 10.2 to 1, 11.31, 117.2 mph, 1.49 60'. |
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