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1980 - 1986 Bullnose F100, F150 & Larger F-Series Trucks Discuss the Early Eighties Bullnose Ford Truck

What size carburetor????

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Old Dec 14, 2004 | 10:30 PM
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Weston666's Avatar
Weston666
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What size carburetor????

Hey.
I got a f-250 1985 inline 6 300 c.i.
I was wondering what size Carburetor i should use with my new intake and exhaust.
I have the clifford intake and clifford headers.
Can someone please help me out?
I was looking to get good gas mileage, with maybe a 2bbl or something.
Thanks.
 
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Old Dec 14, 2004 | 11:39 PM
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1982fordf100
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I've seen alot of guys use the holley 390cfm. Seems to be the most popular swap from the stock 1bbl, when using the 4 bbl intake. Hopefully somone who has done this will chime in.
 
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Old Dec 15, 2004 | 12:03 AM
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RR4E
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Look for a progressive 2 barrel carb(works like half a four barrel, one barrel opens, then the other does under harder acceleration) If this is a 4 barrel intake, why not run a smaller 4 barrel on it? You might find it does better with more fuel, on smaller primaries. Likely look at something in the 450-500 cfm range for a max. Can't offer brands off the top of my head, but they do make them for the application, and likely Edelbrock will have something for you.
 
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