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Old 05-23-2022, 05:43 AM
GTO-relic GTO-relic is offline
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Join Date: May 2021
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it's a well known fact,
the Holley 950HP, only flows around 790cfm
and the Holley 1000HP, only flows around 900cfm
for some reason Holley's awesome flow equipment,
is not capable of putting an accurate flow number on their carburetors,
It was not BG who was inflating numbers, it was Holley all along.
this is a case of blaming BG, for what Holley was actually doing themselves.
it's a blatant case of false advertising. see it below, just one case of the many threads on Holley cfm fudging.

https://www.speed-talk.com/forum/viewtopic.php?t=9463

by highhat » Sun Feb 10, 2008 5:16 pm
I just called Holley this week to get flow numbers. I have a 950HP and wanted to move up to a 1000HP.
I got them to state flow numbers. They said:
950HP flows 790
1000HP flows 900/

Holley 950 carbs
Post by bigjoe1 » Sun Feb 10, 2008 10:34 am
When the 950 Holley cam out. I tested one against a good known 850 I use on the dyno alot. On a 406 Chevy that was at 625 HP , the 950 LOST 23-24 HP over the 850. When I tested the carbs on my flow bench, the 850 flowed about 55 CFM MORE than the 950. The holley 950 is really a 750 main body with an 850 throttle body. Not what everybudy thinks it is.A real 850 will work well for your 434 combo.


Last edited by GTO-relic; 05-23-2022 at 05:53 AM.