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#1
06-13-2013, 02:59 AM
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Did a search but wasn't successful.
I am curious if the 72 HOs with their factory "net" hp/tq ratings performed similar to the 71 HOs (i.e. quarter mile times, etc).
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70 Formula 400 Auto non-A/C Wanted: 1972 Formula HO - leads very much appreciated. |
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#2
06-13-2013, 08:38 AM
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Quote:
The '71s had the so-called 800 CFM Q-Jet and the as-cast exhaust ports on the 1971 "197" casting cylinder heads were less restrictive than the "7F6" exhaust ports. That and the '72 carbs were calibrated EXTREMELY lean from the factory.
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Regards, "455HO" Lloyd 2008 GMC Sierra Denali 2WD Crew, L92 6L80E, Silver w/ Ebony guts, 14.26 @ 98 
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