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How much vacuum do I need for power brakes?

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Old Oct 16, 2007 | 02:07 PM
  #1  
ejb2370's Avatar
ejb2370
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Joined: Mar 2006
Posts: 5
Default How much vacuum do I need for power brakes?

We put a Mighty Demon 850 carbuerated427 with a radical cam in a 93 Cobra clone.The power brakesaren't getting enoughvacuum to work right.It's only putting out about 1-2 psi of vacuum at idle.Has anyone else ran into this?What's the best fix?Thanks
Old Oct 16, 2007 | 04:32 PM
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bill_w
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Joined: Oct 2007
Posts: 83
From: Delaware
Default RE: How much vacuum do I need for power brakes?

Wow thats low vacuum.... your best bet would be a vacuum canister if you dont already have ine installed.
Old Oct 16, 2007 | 05:57 PM
  #3  
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bill_w
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Joined: Oct 2007
Posts: 83
From: Delaware
Default RE: How much vacuum do I need for power brakes?

If thats not possible I did a quick search at summit racing and found an electric vacuum pump http://store.summitracing.com/partde...p;autoview=sku
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