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Old Feb 7, 2012 | 09:40 PM
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Question 351 W

I have a 1988 F-250 4x4 (that has been used as a snow plow truck) and I'm haveing problems with the E.F.I. I would like to go to a carb. I say all that to ask this is the intake the same on a 302 and 351w? (looking for a 4 barrel intake)
 
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Old Feb 7, 2012 | 09:41 PM
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No. A 351w has a wider intake.
 
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Old Feb 7, 2012 | 09:49 PM
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Hold on here. What's going on with your EFI that you want to go Carb? Perhaps it's something simple.
 
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Old Feb 7, 2012 | 09:53 PM
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ok, thanks, I didnt think it was but thought I should ask, Would have been a lot easier to find
 
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Old Feb 7, 2012 | 10:05 PM
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Originally Posted by GNR22
Hold on here. What's going on with your EFI that you want to go Carb? Perhaps it's something simple.

plow truck... the salt has really got to this truck. It brunt up two computers , seems to run best on a 300. 6cly computer and now cant get it running (left sit for a year or so bc of these problems)
 
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Old Feb 7, 2012 | 10:06 PM
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Originally Posted by slam1991
plow truck... the salt has really got to this truck. It brunt up two computers , seems to run best on a 300. 6cly computer and now cant get it running (left sit for a year or so bc of these problems)
So you're running a 351w on a 300 EEC?
 
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Old Feb 7, 2012 | 10:08 PM
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Uhhh. You just blew my mind dude. How are you getting it to run on a 300 6cyl computer at all?
 
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Old Feb 7, 2012 | 10:10 PM
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oh forgot the gas tank is rusted out too And I already know how much a tank and pump cost
 
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Old Feb 7, 2012 | 10:10 PM
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Originally Posted by GNR22
Uhhh. You just blew my mind dude. How are you getting it to run on a 300 6cyl computer at all?
That's exactly what I was thinking
 
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Old Feb 7, 2012 | 10:12 PM
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the 300 and the 351w use the same hook up for the computer, just plugg and play lol, and it wont run on a 5.0 computer at all
 
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Old Feb 7, 2012 | 10:13 PM
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The computers aren't "One size fits all"...what kind of cobble job are you doing here? If you do it right the first time, you dont have to redo it...
 
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Old Feb 7, 2012 | 10:14 PM
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Well i can understand that it wont run on a computer that used a different firing order...but u got a computer to work that, not only has a different firing order, but a completely different number of cylinders?
 
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Old Feb 7, 2012 | 10:15 PM
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I am just not understanding why it will run on the 300 EEC and not the 5.0 EEC. It won't have all its power on the 5.0 EEC, but it should still run. It shouldn't run on the 4.9(300) EEC.
 
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Old Feb 7, 2012 | 10:17 PM
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Originally Posted by GNR22
Well i can understand that it wont run on a computer that used a different firing order...but u got a computer to work that, not only has a different firing order, but a completely different number of cylinders?
His truck will have batch fire injection. So firing order, like 5.0 or 5.8 doesn't matter.
 
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Old Feb 7, 2012 | 10:19 PM
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Oh yeah that's right. I can never remember that. but that still doesn't make this ok. LOL.
 
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