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07-14-2013, 02:21 PM
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#1 |
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Registered User
Join Date: Jun 2013
Location: Too far from Texas
Posts: 25
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Manifold vacuum
So I am a nub when it come's to vacuum advance and all that crazy stuff. Stock 305 with a quadrajet and EGR valve is capped. My question is which one of these three vacuum sources is manifold vacuum. Is it the vacuum tree behind the carb, the little tee coming off the carb or the single line on the bottom of the carb?
I have read that I should run manifold vacuum because the egr system is disabled. |
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07-14-2013, 02:56 PM
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#2 |
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Registered User
Join Date: Oct 2010
Location: Ocean Springs, MS
Posts: 1,746
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Re: Manifold vacuum
The one on the bottom and the one behind the carb are manifold vacuum. Not really the right place to connect a distributor. Where was is hooked up originally?
__________________
Gary 1971 Chevrolet C/10 1951 GMC 100 1977 GMC C15 1955 Chevrolet 3100 |
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07-14-2013, 02:58 PM
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#3 |
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Registered User
Join Date: Oct 2012
Location: snead al.
Posts: 9
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Re: Manifold vacuum
the tree behind the carb or any vacuum proton the bottom of the carb
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07-14-2013, 02:58 PM
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#4 |
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Registered User
Join Date: Jun 2013
Location: Too far from Texas
Posts: 25
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Re: Manifold vacuum
it wasn't hooked up at all. Every vacuum line on the carb was disconnected.
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07-14-2013, 07:40 PM
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#5 | |
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just can't cover up my redneck
Join Date: May 2004
Location: Columbus OH
Posts: 11,414
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Re: Manifold vacuum
There should be a vacuum diagram sticker on the radiator support. It is really not advisable to "partially" disable things. While "stock" is not the greatest, it is better than causing problems from messing with things that have to work together. So...
Put it all back like it was originally, or get rid of it all. That would mean the electronic carburetor, distributor, etc. It would be better in the long run, but there is some work and cost involved.
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