TBI Throttle Body Injection discussion and questions. L03/CFI tech and other performance enhancements.

TBI w/ TH-350 trans

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Old Oct 19, 2005 | 12:52 PM
  #1  
ck76239's Avatar
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From: Upstate NY
Car: 1982 z28, 2007 Silverado
Engine: 350 Chevy, 10-1 CR, Comp Cams 270h
Transmission: Th350,
Axle/Gears: 3.23
TBI w/ TH-350 trans

Hi Guys, I have an 82 z28, it was originally a crossfire car. Well, the 305 develpoed a rod knock, so I decided to get a GM Goodwrench crate 350.

I wanted to keep it fuel injected, so I went to the local pick and pull, and found an 91 C-20 van with 350, so i grabbed the intake, throttle body, ecm, wiring harness and all the sensors.

I also decided to upgrade the th-200 trans to TH-350, so I pulled on of those out of a 76 Camaro. Then I had the trans re-built locally.

Now I have it almost together, but I cant get the kickdown cable to work with the throttle body setup. I tried using the original bracket from the 76 camaro that had the TH-350 and a Q-jet, but it puts the kickdown cable so far back, that I cannot hook it to the post on the throttle body.

Then I tried to use the kickdown cable bracket from the TBI van, it puts the kickdown cable too far forward


So are any of you guys running a TH-350 Transmission with your TBI, and if so, what kickdown bracket did you use?

I'm thinking I could run a piece of wire between the kickdown cable and the trottle linkage, but it would look gerry rigged....

Thanks!
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Old Oct 19, 2005 | 02:02 PM
  #2  
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From: Chasing Electrons
Car: check
Engine: check
Transmission: check
I used the original kickdown bracket from a 2-bbl application. The engine was originally a SBC with a 2-bbl carb on it and a TH350 trans. Used a stock TBI intake (slotted the center holes), stock 2-bbl TBI unit, and reused the original throttle and kickdown bracket. Application is a '78 ElCamino.

RBob.
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Old Oct 20, 2005 | 11:55 AM
  #3  
ck76239's Avatar
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Joined: Jun 2005
Posts: 64
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From: Upstate NY
Car: 1982 z28, 2007 Silverado
Engine: 350 Chevy, 10-1 CR, Comp Cams 270h
Transmission: Th350,
Axle/Gears: 3.23
Thank You Rbob... Off to the junkyard now to look for a 2bbl bracket!

CK76239
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Old Oct 20, 2005 | 11:48 PM
  #4  
Fast355's Avatar
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From: Hurst, Texas
Car: 1983 G20 Chevy
Engine: 305 TPI
Transmission: 4L60
Axle/Gears: 14 bolt with 3.07 gears
Some late 80s trucks and vans had the TH350-C behind TBI engines which would be the brackets to get. Or just buy a late model kickdown cable for the TH350. Just get one for like a mid 80s truck from your local autoparts house. The cable has basically (fits the same bracket/linkage) the same end as a 700r4 but is for a TH350 on the transmission end.
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