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Installing a vacuum advance distributor

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Old Apr 9, 2002 | 07:54 PM
  #1  
Eric's85TA's Avatar
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From: Nebraska
Car: 1985 Trans Am
Engine: 400
Transmission: 700R4
Axle/Gears: 3.70
Installing a vacuum advance distributor

Can I install a regular vacuum advanced HEI in place of the stock distributor on my LG4 and still have the ECU and CC q-jet work right?
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Old Apr 9, 2002 | 08:03 PM
  #2  
Mark A Shields's Avatar
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From: Someone owes me 10,000 posts
Car: 99 Formula
Engine: LS1
Transmission: T56
Axle/Gears: 342
The carb will work, but not properly, neither will your TC lockup. And you'll get about 10mpg , happened to me when I installed the 350.
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Old Apr 9, 2002 | 10:12 PM
  #3  
Eric's85TA's Avatar
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From: Nebraska
Car: 1985 Trans Am
Engine: 400
Transmission: 700R4
Axle/Gears: 3.70
Thanks, that's kinda what I figured, but it never hurts to ask.
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Old Apr 10, 2002 | 01:03 AM
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From: cary,nc,usa
after the swap you can go ahead and install that edelbrock carb you've always wanted....they're only 200-250
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Old Apr 10, 2002 | 01:16 AM
  #5  
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From: Paris, Tx. USA
Car: 89 RS
Engine: LS1
Transmission: TH350
I was going to say, but yes Mark is right.

The ECM needs to see the dist. there, pulses and such, I guess.

But go ahead and get the aftermaket card with the non-CC dist.
Install the manual lock-up switch, and your good to go with out the ECM.
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