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Old 10-24-2013, 01:25 PM   #1
low&slow
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Carb Help Please

I have a Carter AFB Competition Series 4 brrl carb. I know where most of my hoses and the fuel line connects too on the carb, but I don't know what the other ends for? I have them circled in the picture.
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Old 10-24-2013, 01:32 PM   #2
BIG69GMC
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Re: Carb Help Please

Looks like ported vacuum ports to me. You would have to just see what vacuum ports/lines you had on your previous carb and then just use as needed on the new carb. if not needed, you can get rubber end plugs to plug them off.
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Old 10-24-2013, 01:41 PM   #3
geezer#99
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Re: Carb Help Please

Big one on the left is a vent for a line to your charcoal filter.
Middle is ported vac.
Right is manifold vac.
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Old 10-24-2013, 03:11 PM   #4
low&slow
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Re: Carb Help Please

Quote:
Originally Posted by geezer#99 View Post
Big one on the left is a vent for a line to your charcoal filter.
Middle is ported vac.
Right is manifold vac.
Are you going in order of the circles? Or are you talking about the 3 front ones?

From the way I have my other carbs set up is the brake booster hose goes to the back of the carb or to the intake itself. The breather cap hose on the valve cover goes to the big middle one on the front of the carb. Fuel line goes on the side. And then the distributer hose goes to the little one on the left front of the carb. I have edelbrocks on my other trucks. Never had a carb that has two ports on the side. I know the back one on the side is for the fuel line.
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Old 10-24-2013, 03:19 PM   #5
low&slow
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Re: Carb Help Please

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Originally Posted by BIG69GMC View Post
Looks like ported vacuum ports to me. You would have to just see what vacuum ports/lines you had on your previous carb and then just use as needed on the new carb. if not needed, you can get rubber end plugs to plug them off.
Never had a motor for this project. I got the motor, tranny, intake, carb, and other misc parts in on the deal. The guy I got the carb from ran it on a dirt circle track car. Also, is there a way I can figure out the CFM rating?
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Old 10-24-2013, 03:30 PM   #6
geezer#99
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Re: Carb Help Please

It's your pic and your circles!!
The big one in front goes to the pcv.
Carb number on the lower left side flange tell's you what carb it is.
Look here to find out the cfm.
http://www.hemmings.com/partslocator/carburetors.html
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Old 10-24-2013, 03:59 PM   #7
low&slow
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Re: Carb Help Please

Since I don't have a charcoal filter, than I can plug off the one on the side and I'd just be left with the fuel line on the side?
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