Classic Mustangs (Tech) Technical discussions about the Mustangs of yester-year.

65 mustang carb problems??

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Old Jul 27, 2008 | 01:26 PM
  #1  
up_yours_7's Avatar
up_yours_7
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From: Tooele, Utah
Default 65 mustang carb problems??

I am just trying to figure out where i would hook up to get the other two barrels of my four barrel working??
Old Jul 27, 2008 | 01:32 PM
  #2  
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kalli
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Default RE: 65 mustang carb problems??

what carb is it ? if it's a vacuum advance carb then it's the engines vacuum that pulls the other 2 barrels
if that's the case they should _NOT_ open when you rev it and look down. only under heavy load, which you can't produce when the car is standing
Old Jul 27, 2008 | 01:38 PM
  #3  
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up_yours_7
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Default RE: 65 mustang carb problems??

the only problem there is no vacuum lines anywhere hooked up to it i know its a holley but not sure what brand
Old Jul 27, 2008 | 01:41 PM
  #4  
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restomod66
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Default RE: 65 mustang carb problems??

Pull off the air cleaner and find the numbers and take a few pictues and let us look at them.
Old Jul 27, 2008 | 03:09 PM
  #5  
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kalli
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Default RE: 65 mustang carb problems??

hey up-yours,
1. if it's a vac secondary the engine will suck them open. but we need carb details to say anything
2. if you have open vacuum ports on the carb, block them as otherwise the car will run like crap.

Old Jul 27, 2008 | 03:14 PM
  #6  
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up_yours_7
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Default RE: 65 mustang carb problems??

so I dont need to hook anything up to a vacuum or anything??
Old Jul 27, 2008 | 03:28 PM
  #7  
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Gary H
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Default RE: 65 mustang carb problems??

Nothing other than vac. advance to the distributor. All internal for the secondaries.
Old Jul 27, 2008 | 06:12 PM
  #8  
kalli's Avatar
kalli
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From: Cork, Ireland
Default RE: 65 mustang carb problems??

if you hook up vaccum advance to carb, you need to have to use the proper port for it.
if the car is in idle and you have vacuum there it's the wrong one
it should have no vacuum at idle and pull a bit when you rev and let go.
again we could give more details when we knew what carb you have.
But most vacuum advance don't need any hoses on outside to open tyhe secondaries.
if it's a double pumper, then they're opened mechanically with the rods connected to the throttle plate.

Old Jul 27, 2008 | 07:10 PM
  #9  
Starfury's Avatar
Starfury
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From: Elk Grove, CA
Default RE: 65 mustang carb problems??

Actually, you can run the VA off manifold vacuum...but it's not for everyone
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