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bill morgan Posted on Aug 23, 2012

Holly four barrle carb for 460 cu in 1986 Ford econoline 350

The motor home sat for 5 years and when I drive it it will not go faster than 45 mph. What will cause this problem?

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John T. Steele

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  • Contributor 8 Answers
  • Posted on Aug 23, 2012
John T. Steele
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Joined: Aug 25, 2010
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IT is a Holley 4-barrel carburaetor that he's reffering to.

5 Related Answers

GM Elec

Bruce Bracey

  • 1000 Answers
  • Posted on Apr 27, 2009

SOURCE: carberator problem - holly carb on chevy 350 motor

You are correct, there is a float inside a holley 4 barrel fuel bowl.
Is the electric fuel pump regulated? If the fuel pressure is above 8 lbs, you could run into this issue or the float / needle / seat could have a problem or miss adjusted.

By the way, a 2007 GMC is not carbureted so I assume this is not the vehicle or it has been modified.

Good luck.
Regards,

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Anonymous

  • 65 Answers
  • Posted on Jul 07, 2009

SOURCE: 1989 Ford Econoline 350 fuse box location?

here is manual from ford

https://www.fleet.ford.com/maintenance/owners_manuals/default.asp

Anonymous

  • 3533 Answers
  • Posted on Sep 10, 2009

SOURCE: i need a belt diagram for my 1986 ford f250 460

for the most part there is a diagram under the hood showing you how the belt goes on try these websites www.alldatadiy.com and www.autozone.com and drive belt diagram at www.webcrawler.com or call your local ford dealer and have them to e-mail you one best of luck Michigan Man

c17hydro

Greg Bernett

  • 2993 Answers
  • Posted on Sep 25, 2009

SOURCE: 1986 Nissan 720 4x4 pickup truck. Speedometer

Either the gauge is bad, the cable is kinked or the speedometer connector is bad...at the tranny.

emissionwiz

Marvin

  • 85242 Answers
  • Posted on Sep 08, 2010

SOURCE: Ford Econoline 350 Motorhome TripleE 460 cid Where

in the kick panel, there is a hole u reset it through

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86 ford 460 cu. in. Ford w/ Holly four barrle carborator secondary

On most models, the secondary barrels would only work if the primary are in wide open position, and even then the range of opening is small.
The engine should run past 3000 RPM on just the front barrels, so you may have something else going on.
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1helpful
1answer

I have a 1988 Fleetwood rally motor home with 1988 ford Econoline 350 it has been sitting for awhile, but was running perfect before we parked it. It starts right up, as long as we spray starting fluid in...

If you have the fuel injected 460 with tfi module on the distributor have it replaced[ I did after replacing all my fuel pumps,plugs and wires].All you need to do is have it replaced $50 part half hour labor
1helpful
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Ilp have an 87 F350 with a 460 and a manual trany

Did you drain the old fuel out of the tanks? Old fuel will not fire most times it goes bad and mosture accumulates. Next question for you are you getting and spark?
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