carb rejetting
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Fleet Mechanic
Joined: Jan 2011
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From: West Valley City
carb rejetting
Ok, I'm stumped. I've been told several different stories about rejetting the carb on my 86 F150. 4.9. A few have told me that Ford leans them out and you can't put smaller jets in, Others have told me that you can rejet the Carb. Whos right?
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Joined: Nov 2010
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From: Rust/Salt Belt in SW Mich
billt28,
If you are good with carbs you can clean up the carb throat by removing any cast parting lines and polishing the throat. This will improve the air flow by reducing air turbulance. My experience shows that this increases power and MPGs. However the increases are small (but noticeable) my wife even noticed the ole Plymouth seemed more peppy.
If you are good with carbs you can clean up the carb throat by removing any cast parting lines and polishing the throat. This will improve the air flow by reducing air turbulance. My experience shows that this increases power and MPGs. However the increases are small (but noticeable) my wife even noticed the ole Plymouth seemed more peppy.
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Joined: Mar 2005
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From: Earth
Why do you want to lean out the carb?
Ford spent a lot of time and money tuning for the best economy/emissions. On an otherwise stock vehicle there's not much to be gained by changing the factory settings.
Ford spent a lot of time and money tuning for the best economy/emissions. On an otherwise stock vehicle there's not much to be gained by changing the factory settings.
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Postmaster
Joined: Dec 2006
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From: Spokane, WA
"Well I was thinking about changing to a smaller jet (maybe the next size down."
Same question as BVA X2. For what purpose?
Same question as BVA X2. For what purpose?
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johnnyg
1980 - 1986 Bullnose F100, F150 & Larger F-Series Trucks
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Apr 15, 2010 06:02 PM
