Carburetor question - Team Camaro Tech
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post #1 of 14 (permalink) Old Jan 30th, 01, 08:31 AM Thread Starter
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David
 
Join Date: Oct 2000
Location: Lee's Summit, Mo
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Question

When I had the 396/350HP engine rebuilt for our '68, I bought an Edelbrock/Q-jet Carb. The problem is that it doesn't have the right throttle arm, as it doesn't contact the kickdown switch for the TH400 trans. Edelbrock doesn't have any kits to attach to the carb to acomplish this and they don't seem to know what I'm talking about when I explain it to them.
Does anybody know how to remedy this without replacing the carb?
If I replace it with a rebuilt Rochester from say Jet Performance, how do I insure that it is going to be right?
I looked up the part no. for the correct carb, but doubt that they will have the exact part no.
Any help is greatly appreciated.

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post #2 of 14 (permalink) Old Jan 30th, 01, 10:24 AM
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Lokar makes a cable and remote mount solenoid that does the same thing. The solenoid mounts to the trans and the cable goes to the carb. Summit carries their products.

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68 RS, Ash Gold,pwr windows,Hounds tooth
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post #3 of 14 (permalink) Old Jan 30th, 01, 01:07 PM
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Freddie
 
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I have removed the arm from original carbs before and put them on aftermarket carbs. I ground the end of the shaft off of both carbs and removed the arms. Then I welded the original arm on the replacement carb. That way everything hooked up the way it was supose to. Be very carefull about the amount of heat you put into the shaft. Have a bucket of water ready to dunk it in as soon as you finish welding.

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'69 RS/SS396 pro street
427/4spd/9"
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post #4 of 14 (permalink) Old Jan 31st, 01, 10:08 AM
 
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Hey I just posted this question a little while ago. I contacted holley and they had never heard of an electric tranny kickdown. From what everyone said you would be best to put the original one away and start building a new one from scratch. I have a holley 750 vac secs on an edelbrock manifold and I thought of reusing my original bracket but you would need to mount it back closer to the firewall than the original bracket will allow. So I took a piece of soft tin and modelled one from scratch. It can be built with the same look to it except the carb stud hole will need to be closer to the switch and will end up being about an inch closer to the tip of the switch. You will also need to weld a couple of tabs on the bottom of the bracket to keep it from rotating as the holley doesn't have a tab hole like the rochester. I had some bracket pictures sent to me from another member with the same set up and I can forward those to you if you like.
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post #5 of 14 (permalink) Old Jan 31st, 01, 11:37 AM Thread Starter
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David
 
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<BLOCKQUOTE>quote:</font><HR>I had some bracket pictures sent to me from another member with the same set up and I can forward those to you if you like<HR></BLOCKQUOTE>
Yes, please do. Send them to [email protected]

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post #6 of 14 (permalink) Old Jan 31st, 01, 06:05 PM
 
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I'll send them on thursday

Don
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post #7 of 14 (permalink) Old Jan 31st, 01, 07:12 PM
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Joe
 
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Isn't it interesting that companies like Holley and Edelbrock say they have never heard of an electric kickdown switch when it's standard on Chevy's TH400? Kinda makes you wonder what other things they don't know about cars!

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69 SS396 Clone, B&M TH400, 12 Bolt Posi, Blue w/White Z28 Stripes
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post #8 of 14 (permalink) Old Feb 1st, 01, 06:26 AM Thread Starter
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David
 
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Exclamation

Good point Joe. I talked to some Edelbrock guy's at the Topeka NHRA event and they acted like I didn't know what I was talking about. They said if I got their carb. that was recommended for my car than it's the right one and everything works just fine.

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post #9 of 14 (permalink) Old Feb 1st, 01, 11:39 AM
 
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I just sent the photos to your your email

don
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post #10 of 14 (permalink) Old Feb 1st, 01, 12:08 PM Thread Starter
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David
 
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Talking

Thanks Northern, I got them.

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post #11 of 14 (permalink) Old Feb 3rd, 01, 06:23 PM
 
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The kickdown switches I have seen for TH400's
were operated by the gas pedal(on'70's Chevy
pickups). Maybe you could use one for your
application. They are easy to hook up and
no carb linkage mods are required.
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post #12 of 14 (permalink) Old Feb 3rd, 01, 07:34 PM
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Joe
 
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Check with Bruce (WE4) at Performance Transmissions.
He pointed me in the right direction.
JOe

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69 SS396 Clone, B&M TH400, 12 Bolt Posi, Blue w/White Z28 Stripes
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post #13 of 14 (permalink) Old Feb 4th, 01, 12:31 PM Thread Starter
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David
 
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Location: Lee's Summit, Mo
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Question

<BLOCKQUOTE>quote:</font><HR>Check with Bruce (WE4) at Performance Transmissions.<HR></BLOCKQUOTE>
How do I contact him Joe?

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post #14 of 14 (permalink) Old Feb 4th, 01, 08:37 PM
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Joe
 
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He's on this site a lot. He uses WE4 as his Tech Team name. Do a search and you'll find his E mail.

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69 SS396 Clone, B&M TH400, 12 Bolt Posi, Blue w/White Z28 Stripes
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