What is needed to convert a EFI car to a carb?

Hello everyone. What I'm thinking about doing is to convert the car from an EFI setup, to a carburetor setup. It is a 1994 Ford Mustang GT w/ a 5.0L V-8, as my baseline. I guess, I would like some pointers and what equipment to buy, or obtain. I know I would need a carb, and intake to match. Was more concerned with ignition sources, and such. And also if there is a forum, or a place I can get directed to, to find out how its done. Thanks in advance for any advice you all may have.

Update:

I don't care about price. Besides, if I tore the care down and sold the parts, I can afford it very easily. Also had planned on buying a brand new ride, and get rid of this one.

16 Answers

Relevance
  • 1 decade ago
    Favorite Answer

    Well, you'll need an intake manifold and carb, of course. You'll probably have to yank the ignition system and computer as it will have a hissy-fit if it doesn't see the fuel injection system. And you'll have to figure out how to deal with the speedo if the current one is electronic and getting its signals from the computer. Worst case could involve a trans swap to get the drive cable for a mechanical one.

    You'll have to locate a distributor (maybe) and coil (definitely), etc. again due to the loss of the computer.

    You'll need to yank the fuel pump and replace it with a low pressure one for the carb. The EFI pump will blow fuel right out the float bowl vents.

    Personally I'd just build an old-school 302 & C-6 and drop it in with a custom dash and hand-crafted electrics. Probably be more fun and cost less too.

    Forget passing emissions tests. We don't have them in my area, but the safety inspection does check for factory emissions gear so that would be a bust here.

    • Login to reply the answers
  • 1 decade ago

    It's not too hard. Important---When buying an intake tell them it is for EFI heads as the ports are different from the others. Pick a good carb, I suggest Weiand, much more dependable than holley. Buy an electric fuel pump to put under the hood and the correct fittings to tap into the high pressure line. Good thing is the way they are set up the low pressure pump you have to have for the carb system can suck right through the old high pressure pump with no problem. Pull the pump relay so power won't go to the hp pump in the tank. You will also have to unhook the throttle position sensor but other than that most everything stays the same. The only thing you might have a problem with is if the computer glitches a little and doesn't set spark advance the way it should. If you do have a problem I'm sure PAW, Summitt, or Blue Oval should have a kit to correct it.

    • Login to reply the answers
  • 5 years ago

    This Site Might Help You.

    RE:

    What is needed to convert a EFI car to a carb?

    Hello everyone. What I'm thinking about doing is to convert the car from an EFI setup, to a carburetor setup. It is a 1994 Ford Mustang GT w/ a 5.0L V-8, as my baseline. I guess, I would like some pointers and what equipment to buy, or obtain. I know I would need a carb, and intake to match....

    Source(s): needed convert efi car carb: https://tinyurl.im/PoP75
    • Login to reply the answers
  • Erika
    Lv 4
    3 years ago

    Efi Carburetor

    • Login to reply the answers
  • How do you think about the answers? You can sign in to vote the answer.
  • 3 years ago

    Carburetor To Fuel Injection

    • Login to reply the answers
  • 1 decade ago

    Ignition source has nothing to do with the carb or fuel injection. You would also need to make sure that state you live in does not prohibit changing to a carb. Some states do not allow any modification. Also I do not know Fords that well but how will you tie in the emission control system? Call some hot rod type shops in your town ask if they have any information for you.

    • Login to reply the answers
  • Anonymous
    6 years ago

    Fuel injection systems are not immune to EMP & an ECU can't be made in the field, so no it isn't superior, like all higher tech it relies on too much else.

    • Login to reply the answers
  • Helen
    Lv 4
    4 years ago

    For the best answers, search on this site https://shorturl.im/axLdl

    note: I want to sell the car because its taking space... Probably bring more as scrap than you'll realize after repairing and selling.

    • Login to reply the answers
  • 4 years ago

    Need to convert 1994 Isuzu V6 from fuel injection To carb. All help is appreciated!

    • Login to reply the answers
  • Sandra
    Lv 4
    4 years ago

    Regrettably. You will definitely see more gains from this car at the scrapyard.

    • Login to reply the answers
Still have questions? Get your answers by asking now.