carb to efi -

5.0L (1979-1995) Mustang Technical discussions on 5.0 Liter Mustangs within. This does not include the 5.0 from the 2011 Mustang GT. That information is in the 2005-1011 section.

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Old 11-13-2008, 09:55 AM   #1
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Default carb to efi

ok i got a 5.0 and i am working in it and i just had some questions for all of you. i was wondering what all is required to do a carb to efi swap also i was leaning towards stroking it to a 331ci for some more power but i am in need of some advice. my goal is 450hp with no nitrous or turbo or supercharger any opinions help thanks
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Old 11-13-2008, 11:25 AM   #2
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do NOT swap a carb to efi.... carb's make better power. no matter what intake you get for efi it can't perform as well as a single plane carb intake. i pulled the motor out of my old 88 along with the suspension, tranny and rear diff and threw all of it in my new 83 and put a carb ontop of it and it would have RAPED my 88 hands Down
as for goin with a 331, 331FTW!! i love mine in my 83

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Old 11-15-2008, 11:56 AM   #3
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Swapping a carb to EFI requires some type of computer, different distributor, intake manifold, fuel rails and injectors (or throttle body type EFI) computer sensors like a MAP or MAF, various computer sensors and the places needed to plug them in, eletronic fuel pump,etc. I swapped a carb'ed Chevy 350 to a MPFI system. Bought a complete system at affordable fuel online and although was pretty reliable and easier to start, didn't perform any better. Cost me like $1700 or so too.
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