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C3 Fuel, Emission Control, and Exhaust Systems

1972 350 from carb to EFI (1/4)
 8/14/17 10:26am
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Joined: 8/14/2017
Posts: 1

I have a 1972 with a 350 which was just rebuilt looking to put a EFI system instead of carb.  Any suggestion and what to look for when Changing

looked at fast, ifec, msd 
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Re: 1972 350 from carb to EFI (2/4)
 8/14/17 10:48am
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Grapevine, TX - USA

1972 LT-1 convertible with factory air.

Joined: 8/26/2006
Posts: 961

Re: 1972 350 from carb to EFI (3/4)
 8/14/17 5:05pm
Adams' AppleLifetime Member
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Duncanville, TX - USA

#1-1974 L-48 4spd Cp Med Red Metallic/Black deluxe int w/AC/tilt/tele./p/w-p/b/ Am-Fm/map light National/Regional/Chapter NCRS "Top Flight" #2-1985 Bright Red/Carmine Cp.L-98/auto Member: NCRS, NCRS Texas, Corvette Legends of Texas

Joined: 11/8/2003
Posts: 19603

Darryl(sarge81)has converted a few from carbs to EFI. He seems to really like the improvements. He should see this thread and respond.

Joel Adams
C3VR Lifetime Member #56    

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Re: 1972 350 from carb to EFI (4/4)
 8/15/17 6:26am
Sarge81Lifetime Member
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1981 Blue Ice Met. w/pearl ghost flames TKO500 5speed. LS1 Swap 3.45 Dana 44.

Joined: 12/3/2001
Posts: 2378

I like the FiTech EFI unit. My wife has an '87 Olds Cutlass 442 with a 350 Olds V8 and 2004r transmission. 
It was a fairly easy retrofit. Only a few wires to connect. They do offer a separate "Fuel Command Center" unit that handles the fuel delivery. Basically the factory fuel pump feeds the FCC and a high pressure electric pump and regulator feed the EFI unit. I went with a new tank and did the in tank fuel pump on her Olds. Just a personal preference thing. 
The key is making sure your wire connections are perfect. Especially the tach signal wire. These units rely on a good clean tach signal. There are other companies out there like MSD, Edelbrock, Holley that offer these self learning retrofit EFI units. Programming the initial setup is very easy. Just answer the questions as it prompts you and once it starts the learning process begins. I had to do a couple re-learns with my Fitech and change a couple settings to get the car to run right. It was no big deal. Very user friendly. Their tech support was decent imo.

Or you could go the difficult route and do LS engine swap route like I did. Big smile


GEN III 5.7L "LS6" Engine swap
TKO500 5 spd.
3.54 Dana 44
'69 "N11" Sidepipes
Borgeson Steering Box
Born 8/1981
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