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Old 03-10-2016, 12:25 AM   #51
Sean Cour
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Default Re: Heads up runs in Stock & Super Stock

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Originally Posted by grncpe View Post
Thanks, 48mm flows 650-700 cfm. That answers all my questions.
48 mm flows 600cfm.
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Old 03-10-2016, 11:19 AM   #52
Ed Wright
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Default Re: Heads up runs in Stock & Super Stock

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48 mm flows 600cfm.
Mine shows manifold vacuum above 6000 RPM.
A Quadrajet would be a good bit faster.
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Old 03-10-2016, 04:36 PM   #53
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Default Re: Heads up runs in Stock & Super Stock

We dyno'ed with both ... Right at 20 hp difference... But the FI is such a flat powerband it makes up for it ...
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Old 03-10-2016, 06:30 PM   #54
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Default Re: Heads up runs in Stock & Super Stock

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Originally Posted by Jeff Niceswanger View Post
We dyno'ed with both ... Right at 20 hp difference... But the FI is such a flat powerband it makes up for it ...
Same numbers Bobby Warren told me.

Ever try it at the track? Hard to think the flatter torque curve would make up for 20. Bobby didn't seem to think it would.
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Old 03-11-2016, 10:38 AM   #55
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Default Re: Heads up runs in Stock & Super Stock

If a stock 48mm flows 453 from Gm.... How are they flowing 600 and above? Thanks.
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Old 03-11-2016, 10:42 AM   #56
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Default Re: Heads up runs in Stock & Super Stock

Sorry..... I recheck my notes. 435 from Gm.
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Old 03-11-2016, 10:48 AM   #57
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Default Re: Heads up runs in Stock & Super Stock

I never flowed one. Where did you get 435?
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Old 03-11-2016, 11:16 AM   #58
ron mattson
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Default Re: Heads up runs in Stock & Super Stock

We have more heads up races at our local
combo's and association races than most
nationals and divisionals. Just sayin!!
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Old 03-11-2016, 11:19 AM   #59
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Default Re: Heads up runs in Stock & Super Stock

Ed.... Just Google it.
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Old 03-11-2016, 11:43 AM   #60
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Default Re: Heads up runs in Stock & Super Stock

OK, thanks.
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