Best Carburetor 289 4 bbl ? - MustangForums.com


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Old 06-27-2013, 10:04 PM   #1  
mhubert89
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Default Best Carburetor 289 4 bbl ?

hi ,

i have a mustang fastback 1968 with a 289 engine 4 bbl. I want to know what is the best carburetor i can buy ? Its the Holley Autolite 4100 its the right choice ?

Thanks
Mathieu
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Old 06-27-2013, 10:24 PM   #2  
CPTCO
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I always found Edelbrock easier to dial in. But I bet there's some old guys on here that will weigh in.
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Old 06-28-2013, 07:28 AM   #3  
fastbackford351
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Holley 650 double pumper w/mechanical secondaries is my weapon of choice.
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Old 06-28-2013, 10:13 AM   #4  
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There's no such thing as a "Holley Autolite".

The Autolite 4100 was perhaps the finest 4V carb ever made. 1-piece body, and 4 annular discharge venturis put it way ahead of any other carb even now.

These two features lone provide near leakproof operation, and maxumum atomization of fuel for power and fuel economy.
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Old 06-28-2013, 11:51 AM   #5  
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I would definitely go with the Autolite 4100. We have one, and it has never given us any trouble, and it gives us somewhere around 18mpg, while still making the car move when we want it to.
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Old 06-28-2013, 12:36 PM   #6  
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Driving it around or wide open throttle use (Drag racing?)

The holly works in WOT situations, (I guess) but I haven't ever riddin in, or driven a car with one that works as crisp as the 4100 or the edelbrock due to the annular venturies they have. For me there is no decision, get a 4100 or an Edelbrock, but stay around 500 CFM or less, if you listen to many on the interweb that tout a 600CFM you will not be getting the best performance your motor can produce..
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Old 06-28-2013, 12:38 PM   #7  
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Also, I wanted to throw out that not every intake works with the 4100 carbs due to air leaks at the base. Be sure to pair the intake to the carb if you are intake shopping.
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Old 06-28-2013, 10:58 PM   #8  
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I get about 13-14 mpg when I drive it like I have sense. The Holley definitely prefers WAO over idling about town.
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Old 06-29-2013, 11:31 AM   #9  
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Holly 4 barrel 600 cfm
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Old 06-30-2013, 12:48 PM   #10  
mhubert89
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my intake its a 289 performer by edelbrock that was already on the engine !

thanks for your times, i think i will go with the autolite 4100 !
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