EFI or Carb for my 352 - Ford Muscle Forums : Ford Muscle Cars Tech Forum
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post #1 of 29 (permalink) Old 09-23-2017, 01:53 PM Thread Starter
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EFI or Carb for my 352

Wanted to see everyone's thoughts on whether EFI like the Atomic EFI kit is worth the lack of hassling with carbs...which I am doing now.

I am going to rebuild my Autolite 2100 (first time to rebuild a carb, but how hard could it be), and give it one last try, so not giving up yet, I do love the idea of potential reliability on this car with the EFI.

Thanks!

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post #2 of 29 (permalink) Old 09-23-2017, 04:52 PM
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Re: EFI or Carb for my 352

I'm ready to switch myself but scared that, like everything I try, installing my own EFI will just make it all worse.
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Putts drives a 1965 customized Galaxie. Rebuilt 390, 4100 electric choke on a Performer, MX, AC, PS, PB w Scarebird front discs on Cragar 17" S/S.
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post #3 of 29 (permalink) Old 09-23-2017, 06:48 PM Thread Starter
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Re: EFI or Carb for my 352

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Originally Posted by puttster View Post
I'm ready to switch myself but scared that, like everything I try, installing my own EFI will just make it all worse.
You sound like me.

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post #4 of 29 (permalink) Old 09-25-2017, 10:26 AM
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Re: EFI or Carb for my 352

Had been looking into the fitech stuff, found this informative:

10 Common EFI Mistakes - Hot Rod Network
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post #5 of 29 (permalink) Old 09-26-2017, 03:46 PM
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Re: EFI or Carb for my 352

a few choices now on those throttle body EFI

Fritech, holley, atomic...

I could not find any resent article on comparing them, but what I do like
is the Holley is totally self contained for computer. I also don't think you need
are return line any longer, but not positive on that.
I sure wish the price was down closer to $650-700
I'm put one on my 56 Packard, I will be installing one on my 62 with a 351c in it.
Best
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post #6 of 29 (permalink) Old 09-26-2017, 04:04 PM
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Re: EFI or Carb for my 352

It's not just the cost of the EFI kit. You need a new gas tank (rarely makes sense to cut into your old one), in-tank electric pump and pump bracket, 10 micron filter, pressure regulator, return line, and all the hoses and wiring that goes with all that.

And more than likely a new intake manifold.

You can reduce some of that by using a chassis mounted pump, but I wasn't happy at all with the noise that mine made. I have a write up of my build in this forum.

Also, you may find that your old Autolite doesn't like modern ethanol blends.

1964 Thunderbird 390 V8, AOD, F.A.S.T. EZ EFI 1.0, Victor intake, MSD Ignition.
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post #7 of 29 (permalink) Old 09-27-2017, 04:58 AM
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Re: EFI or Carb for my 352

If the car is worth the cost, and you plan to keep it for a while, EFI is hard to beat.

Yes you need a return fuel system with a good high pressure pump, but other than that, the new ones are pretty easy to get together. FITech has a good following and is a bit lower cost, but they all seem to be pretty good other than Powerjection (installed one on a 69 Camaro, not bad itself but cheap parts)

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post #8 of 29 (permalink) Old 09-27-2017, 09:33 AM
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Re: EFI or Carb for my 352

Don't some have underhood fuel reservoirs that allow you to use the old mechanical pump to fill the reservoir and the high pressure system is from there to injectors? I've Edelbrock advertise that, and I'm sure a few others. That setup will simplify the fuel pump and return system. There are a number of the systems that have the computer built into the throttle body. I have heard they don't work as well on dual plane intakes, or at least on higher power engines. Anyone have experience with that?

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post #9 of 29 (permalink) Old 09-28-2017, 04:13 AM
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Re: EFI or Carb for my 352

Yes, but people aren't too happy with them. They literally use a Holley needle and seat and a little reservoir. It doesn't work great, most everyone eventually goes to a standard electric pump design, either frame mounted or in tank

Not recommended IMHO

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post #10 of 29 (permalink) Old 09-28-2017, 06:34 AM
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Re: EFI or Carb for my 352

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Don't some have underhood fuel reservoirs that allow you to use the old mechanical pump to fill the reservoir and the high pressure system is from there to injectors
There are several fuel system "tricks" on the market to avoid having an in-tank pump and return line back to the tank. Yet these all add on a layer of complexity that could lead to unreliability.

One of the advantages of an electric pump is that at key-on you can use it to prime the system. Before I went to EFI I used one to pre-fill the bowls in my carburetor. That completely eliminated the long cranking needed after the car had sat for more than a few days and the gas in the bowls had evaporated. The system that you describe does not have that advantage.

1964 Thunderbird 390 V8, AOD, F.A.S.T. EZ EFI 1.0, Victor intake, MSD Ignition.
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post #11 of 29 (permalink) Old 09-28-2017, 09:05 AM
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Re: EFI or Carb for my 352

Here's a link to my thread on my bumpy road to EFI conversion. https://www.fordmuscleforums.com/gara...-efi-fe-2.html

1964 Thunderbird 390 V8, AOD, F.A.S.T. EZ EFI 1.0, Victor intake, MSD Ignition.
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post #12 of 29 (permalink) Old 09-29-2017, 06:23 AM
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Re: EFI or Carb for my 352

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Don't some have underhood fuel reservoirs that allow you to use the old mechanical pump to fill the reservoir and the high pressure system is from there to injectors?
You might be thinking of a surge tank Mad Scientist Matt's Lair: Surge Overkill.

Putts drives a 1965 customized Galaxie. Rebuilt 390, 4100 electric choke on a Performer, MX, AC, PS, PB w Scarebird front discs on Cragar 17" S/S.
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post #13 of 29 (permalink) Old 09-29-2017, 09:22 AM
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Re: EFI or Carb for my 352

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Originally Posted by puttster View Post
You might be thinking of a surge tank Mad Scientist Matt's Lair: Surge Overkill.
Yes, that type of thing. Universal EFI Sump Fuel System Kits - E-Street - Edelbrock, LLC.

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post #14 of 29 (permalink) Old 09-29-2017, 03:03 PM
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Re: EFI or Carb for my 352

I bought the Fitech Go Steet injection system to try on my 61 Sunliner with a 352. I found a new Spectra fuel tank for under 200.00 and I just saw Fitech's new billit in tank fuel pump conversion kit so I am going to get that. I've heard people are having problems with their "Command Center" sump system so I'm just going to go with the in tank pump.
Now I need to swap on a 4 bbl intake, I have a stock cast iron one I can use. I don't know it it is worth it to get an aftermarket aluminum manifold for a stock 352.
Of course I'm going to go through all this and my Autolite 2bbl carb fires up every time, guess I can't leave anything alone.
Mike
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post #15 of 29 (permalink) Old 09-29-2017, 06:48 PM
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Re: EFI or Carb for my 352

I subscribe to the theorem that if it ain't broke, don't fix it.

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