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1980 - 1986 Bullnose F100, F150 & Larger F-Series Trucks
Stock Fuel System?

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

Stock Fuel System?

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Jul 11, 2011 | 09:29 AM

#1

irishff11

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Stock Fuel System?

I have a 1985 F150 that I am installing a 302 into. I am putting some performance parts onto it like a 670cfm 4bbl carb and intake. I am trying to figure out if the stock fuel system will supply enough fuel to the carb to function??

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Jul 11, 2011 | 10:22 AM

#2

Greyf100

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Did the truck originally have fuel injection, or was it carb to start with? Unless you are going to wind it up past 6,000 RPM a 600CFM 4v should be enough.

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Jul 11, 2011 | 10:33 AM

#3

irishff11

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It originally had a 300 w/carb. Just moving to the v8 with a 4bbl 670 from holley and want to make sure that it will have get enough fuel supply.

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Jul 11, 2011 | 12:59 PM

#4

Franklin2

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You will have plenty of fuel. The stock system supplied 351w's and some 460's also.

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Jul 11, 2011 | 02:27 PM

#5

Gary Lewis

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From: Northeast, OK

Quote:

Originally Posted by Franklin2

You will have plenty of fuel. The stock system supplied 351w's and some 460's also.

X2. You won't have any problem with supplying enough fuel. The only prob might be over-carburetion, but I'm assuming the 670 is vacuum secondary and that should work.

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