Saving gas with a 4V?
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Joined: Aug 2001
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Saving gas with a 4V?
I have a 83 F150 with a 351W, 2V intake and a holley 350cfm carb right now. I've an MSD distributor and ignition, fuel economy is about 13mpg highway. I've been having a debate with some friends over whether switching to a 4 barrel carb and intake would gain or lose economy. I was looking at an edelbrock performer intake with a 600cfm carb- vacuum secondaries. Thanks!
New User
Joined: Jan 2008
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Saving gas with a 4V?
The primaries on a 4-bbl are smaller than the 2-bbl carb.
Until you put you foot into it and kick in the other TWO barrels,you will get better economy.
I've proved it.
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[font color=red]Dennis
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68-Mustang 289 2v-Sunlit Gold
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Until you put you foot into it and kick in the other TWO barrels,you will get better economy.
I've proved it.
http://www.clubfte.com/users/mil1ion/2cents.gif
[font color=red]Dennis
FTE Assistant Administrator
[/font]
[link: motorhaven.autoanything.com|How YOU Can Support This Site]
http://www.clubfte.com/users/mil1ion/canada_flag_animated.gif
[link:www.clubfte.com/users/mil1ion/Mil1ion.html|My Website,"North Of The 49th"]
[link:www.ford-trucks.com/guidelines.html|Club FTE]
http://www.clubfte.com/users/mil1ion/Minimorleytruck.JPG
[font color=blue]78 F-150 429CJ,Silver,Explorer Pkg.
64 1/2 Mustang Pre-World's Fair Car #8092
68-Mustang 289 2v-Sunlit Gold
[/font]
Mountain Pass
Joined: Sep 2002
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Saving gas with a 4V?
You will get better miliage if you use a manual secondary carb and back them off till the throttle is 3/4 open before the back opens. That way you can step into it without opening the secondaries and the four barrell manifold will help this out alot.
