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Topic: EFI-to-Carb conversion (Read 3206 times) previous topic - next topic

EFI-to-Carb conversion

Hi there

I've already finished my EFI-to-Carb conversion and complete engine repair for my Cougar XR7 5.0 1987.

Here is some part of my setup:
Holley 4BBL 750CFM double pumper,
83'Mustang GT intake,
86'Mustang GT headers,
New mech fuel pump 80GPH and timing cover
New double row timing chain
Federal Mogul hypereuretical pistons
Nascar Performance bearings & rings
etc.

Have some questions...
What kind of vacuum scheme I need to use?
Does the FI TV-cable will work with carb (AOD)?
What type of distributor preffer to use (HEI or not)?

Thanks
87'XR7, 94'SN-95

EFI-to-Carb conversion

Reply #1
What cam are you running.
'88 Sport--T-5,MGW shifter,Trick Flow R intake,Ed Curtis cam,Trick Flow heads,Scorpion rockers,75mm Accufab t-body,3G,mini starter,Taurus fan,BBK long tube headers,O/R H-Pipe, Flowamaster Super 44's, deep and deeper Cobra R wheels, Mass Air and 24's,8.8 with 3.73's,140 mph speedo,Mach 1 chin spoiler,SN-95 springs,CHE control arms,aluminum drive shaft and a lot more..

EFI-to-Carb conversion

Reply #2
Stock roller cam at this time.
87'XR7, 94'SN-95

EFI-to-Carb conversion

Reply #3
IMO, if you plan on staying with that stock cam, that 750 dp might be a tad too much. A 600 cfm carb would seem like a better choice, especially since you using a "small port" E3 4 bbl intake.

I am doing a conversion right now using a 88 H.O. Longblock and a E3 GT 4 bbl intake, shorty tubular headers, stock E7 H.O. heads and a stock H.O. cam.

It should make around 215-220 flywheel h.p.

Might want to use a lokar t.v. cable.
Alan Mackin--Semi Professional Ford der
83 T-Bird 460
83 T-Bird Heritage 5.0
84 T-Bird 5.0
86 T-Bird Turbo Coupe NHRA Stocker & Super Stocker
87 T-Bird Turbo Coupe
88 Bronco II Drag truck 302
95 Mustang GT auto
2004 F-350 CC Dually V-10

EFI-to-Carb conversion

Reply #4
agreed

way too much carb for a low compression 302/306 motor.
1979 Ford Fairmont
[/B]
5.0L/4R70W/8.8"/5-lug/3" Exhuast


EFI-to-Carb conversion

Reply #5
Why the carb conversion? EFI is 1,000,000 times better :D
88 Thunderbird LX: 306, Edelbrock Performer heads, Comp 266HR cam, Edelbrock Performer RPM intake, bunch of other stuff.

EFI-to-Carb conversion

Reply #6
Yes, I'm planning to replace cam some later.
And may be heads. But it's too expensive to ship the heads to my place(

Also I planned to use some supercharger setup.
That's because I've chosen 750CFM carb.

I have Eaton M90 from FI SC.
May be I can use it with carb after some hard works...

P.S. Sorry for bad english)
87'XR7, 94'SN-95

EFI-to-Carb conversion

Reply #7
Quote from: thunderjet302;284118
Why the carb conversion? EFI is 1,000,000 times better :D


I want to know.. what is it - muscle car engine)

And my FI system was finaly disassembled and incomplete, when I bought the car.
87'XR7, 94'SN-95

EFI-to-Carb conversion

Reply #8
The EFI stuff has much better driveability than a carb will. I thought you still had all the EFI stuff on the car but since it's all gone you can go either way. If it was me I would run an EFI set up.
88 Thunderbird LX: 306, Edelbrock Performer heads, Comp 266HR cam, Edelbrock Performer RPM intake, bunch of other stuff.

EFI-to-Carb conversion

Reply #9
Lokar makes a kickdown cable for aod avalable at summit racing i also used a factory duraspark dist and module go to cool cats for wiring it up i also used same setup for my buddys 390 real simple

EFI-to-Carb conversion

Reply #10
Quote from: MAYLONE01;284410
Lokar makes a kickdown cable for aod avalable at summit racing i also used a factory duraspark dist and module go to cool cats for wiring it up i also used same setup for my buddys 390 real simple

 

EFI-to-Carb conversion

Reply #11
I also recurved my dist with adjustable vac advance kit

EFI-to-Carb conversion

Reply #12
try and find a kickdown rod from a cfi car with aod,found one at a pick and pull (83 town car) for $8 with the throttlecable just make sure u get the lever at the tranny. with some adjustment to the rod it will work fine.