Carburetors Carb discussion and questions. Upgrading your Third Gen's carburetor, swapping TBI to carburetor, or TPI to carburetor? Need LG4 or H.O. info? Post it here.

rochester to edelbrock

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Old Dec 29, 2013 | 01:45 PM
  #1  
87FBomb's Avatar
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From: cortland ny
Car: 1987 Firebird
Engine: LG4 305
Transmission: 700R4
rochester to edelbrock

ok i want to switch my e4me out for an electric choke edelbrock i have a 350 with a 700r4 what will i need for the tranny to work correctly.
part # on the eddy is 9906 im switching the distributor to a small cap hei unit
i know the setup is good when tuned right but nobody around my area will touch it and i just want to be able to drive it a whole summer iv had it 3 years and its been getting worked on more than iv been able to drive it
thanks guys
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Old Jan 2, 2014 | 12:53 AM
  #2  
five7kid's Avatar
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From: Littleton, CO USA
Car: 82 Berlinetta/57 Bel Air
Engine: L92/LQ4 (both w/4" stroke)
Transmission: 4L80E/4L80E
Axle/Gears: 12B-3.73/9"-3.89
I don't understand why people seem to have so much trouble with the E4ME. I've had two cars with them, one with a 350 - just set everything to the factory settings and they both ran great.

Unless you have an aftermarket intake manifold (you didn't say), you'll need an adapter between the Edelbrock and stock spreadbore intake.

You'll need a "geometry corrector" bracket to bolt onto the carb throttle arm for the TV cable to connect to.

You'll need some means of locking up the torque converter clutch - either a kit that's available from a few different aftermarket outfits, or a manual switch that you flip on in cruise conditions.
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Old Jan 2, 2014 | 06:56 AM
  #3  
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From: Buffalo, NY
Car: 85 Silver Iroc, 79 Camaro
Engine: LB9, 500+ ci BBC
Transmission: 700R4, th400 with brake
Axle/Gears: 3.42, hand made 40 spline 9"
Re: rochester to edelbrock

Rochesters are WAY better than Eddy carbs. People are afraid of them, but when tuned properly run great.

I'd personally stick with the Rochester. Rebuild it and go burn up tires!
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Old Jan 2, 2014 | 07:17 AM
  #4  
Edwardgp's Avatar
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From: Washington State
Car: 1983 BB 1995 Z28 Camaro's
Engine: 454-350
Transmission: TH350-4l60e
Axle/Gears: 373 posi-Stock
Re: rochester to edelbrock

Rochester's where the ticket back in the day. Still think they are a great carburetor.
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Old Jan 2, 2014 | 08:31 AM
  #5  
Jonesyfxr's Avatar
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From: Buffalo, NY
Car: 85 Silver Iroc, 79 Camaro
Engine: LB9, 500+ ci BBC
Transmission: 700R4, th400 with brake
Axle/Gears: 3.42, hand made 40 spline 9"
Re: rochester to edelbrock

People are weary of them because of their design, but with a little self-education you can make them run great.
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Old Jan 2, 2014 | 02:26 PM
  #6  
gearhead141's Avatar
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Joined: Aug 2009
Posts: 384
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From: Escondido, Ca
Car: 1985 Trans Am
Engine: LG4
Transmission: 700R4
Axle/Gears: 3.08
Re: rochester to edelbrock

I agree that the Rochester is a great carb. I had no knowledge of them before getting my car. With a little education through books and You Tube, I was able to tear down and rebuild the E4ME with confidence. For as much as you're going to spend on the new Edelbrock, (which you're going to need to learn about anyway) get to know your Rochester. They are both pretty much the same design.
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Old Jan 2, 2014 | 02:54 PM
  #7  
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From: Charlestown, IN
Car: 1971 Camaro
Engine: 427
Transmission: TKO600
Axle/Gears: 3.73
Re: rochester to edelbrock

Agree with others, Great carb, much better then the Old edelbrock repacakged carter.

You will have to spend more to get your trans to work right as stated, not too mention your car will no longer be emissions legal.
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Old Jan 5, 2014 | 04:28 PM
  #8  
xx138xx's Avatar
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From: Minnesota
Car: 94 camaro
Engine: 5.7 KT1
Transmission: 4L60
Axle/Gears: 10 bolt with 3.73
Re: rochester to edelbrock

I would totally keep a Q jet. maybe swap the E4ME for a M4M. I Think they are easier to mess with.
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