69 RS vacuum question (& LOOK AT MY VALVE COVERS) - Team Camaro Tech
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post #1 of 14 (permalink) Old Aug 26th, 08, 11:25 AM Thread Starter
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69 RS vacuum question (& LOOK AT MY VALVE COVERS)

I am running a holley 650 w/electric choke on my 383 motor. Edelbrock performer (eps) intake. (motor is new and not in my 69 rs yet)

I had the vacuum T behind an edelbrock carb on the old motor. This T had a 3/8 line to the brake booster and a 1/4 line for the vacuum headlights.

With the holley carb I cannot fit this T back on the manifold.
I dont want to use a spacer as I already have the hard fuel lines in place.

I also know there is a edelbrock #8096 that will fit under the rear of the carb but I was told that this is just a 1/4 inch line and not 3/8 for the brakes.

anyone have / had the same problem?





Last edited by 69Rook; Aug 27th, 08 at 11:29 AM. Reason: pics
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post #2 of 14 (permalink) Old Aug 26th, 08, 09:12 PM Thread Starter
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Re: 69 RS vacuum question

Also have a pvc vacuum at the rear of the carb
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post #3 of 14 (permalink) Old Aug 27th, 08, 11:13 AM Thread Starter
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Re: 69 RS vacuum question (AND LOOK AT MY VALVE COVERS)

I have no replys so I thought I would add 'look at my valve covers' as this has 5 pages with 75 replys, and over 3048 hits.

Last edited by 69Rook; Aug 27th, 08 at 11:31 AM.
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post #4 of 14 (permalink) Old Aug 27th, 08, 01:00 PM
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Re: 69 RS vacuum question (& LOOK AT MY VALVE COVERS)

I am disappointed that I can't see your valve covers. But.... I have not had this same problem but you might be able to lift your carb a little, install the "T", and then set the carb back into place. Another possible option may to insert a 90 degree elbow into the intake, and then mount the "T" toward the back.

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post #5 of 14 (permalink) Old Aug 27th, 08, 03:45 PM
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Re: 69 RS vacuum question (& LOOK AT MY VALVE COVERS)

Getting rid of some of those thread wouldn't hurt either.
You probably don't need any more than the part that has thread tape on it.

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post #6 of 14 (permalink) Old Aug 27th, 08, 06:14 PM
 
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Re: 69 RS vacuum question (& LOOK AT MY VALVE COVERS)

You sure don't need all those threads. A dremel with the cutting disk will make a smooth cut. You could also grind some off the top if it's thick enough.
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post #7 of 14 (permalink) Old Aug 27th, 08, 06:49 PM
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Re: 69 RS vacuum question (& LOOK AT MY VALVE COVERS)

Those threads are tapered. Shortening the length of the "T" won't let it screw down any deeper.

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post #8 of 14 (permalink) Old Aug 27th, 08, 07:25 PM
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Re: 69 RS vacuum question (AND LOOK AT MY VALVE COVERS)

Quote:
Originally Posted by 69Rook View Post
I have no replys so I thought I would add 'look at my valve covers' as this has 5 pages with 75 replys, and over 3048 hits.
I love your sence of humor...I guess sending in pics of valve covers is easier than diagnosing your problem....The 90 deg. elbow solution from X33D80 sounds like the ticket to me.

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post #9 of 14 (permalink) Old Aug 27th, 08, 07:48 PM
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Re: 69 RS vacuum question (& LOOK AT MY VALVE COVERS)

But, a half to 3/4 turn of the correct pipe thread tap in the manifold and cutting off the threads would work.

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post #10 of 14 (permalink) Old Aug 28th, 08, 01:05 AM Thread Starter
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Re: 69 RS vacuum question (& LOOK AT MY VALVE COVERS)

Yes it is tapered, ..I will first look for a 90 deg elbow.. it may look a bit funky but it will be hidden. If that doesnt work, I like the idea of cutting some of the threds and grinding off some of the top.

I guess I thought there was some way / part that would make this an easy fix like a low profile vacuum T similar to the one in the pic. Thanks all.
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post #11 of 14 (permalink) Old Aug 28th, 08, 08:30 AM
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Re: 69 RS vacuum question (& LOOK AT MY VALVE COVERS)

You should run a 1" spacer on your carb. It would more than likely make your motor run better, but I don't know the theme of your engine compartment. A 4 hole will give you more low end torque. Just make sure and match up with intake. 4 hole for a dual plane and open with open (actually, you can run a 4 hole with an open...just don't run an open spacer with a dual plane).


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post #12 of 14 (permalink) Old Aug 28th, 08, 09:10 AM
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Re: 69 RS vacuum question (& LOOK AT MY VALVE COVERS)

As Everette said, you could tap the hole a little deeper so that the "T" installs deeper, and you really wouldn't have to trim the length of the "T". Just be careful that you don't tap too deep or the "T" won't screw tight. Looks like you have lots of options.
I would still like to see your valve covers......

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post #13 of 14 (permalink) Old Aug 28th, 08, 01:16 PM Thread Starter
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Re: 69 RS vacuum question (& LOOK AT MY VALVE COVERS)

Here are the valve covers as promised. Please try to keep the drooling to a minimum as water may damage your key board. lol



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post #14 of 14 (permalink) Old Aug 28th, 08, 02:30 PM
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Thumbs up Re: 69 RS vacuum question (& LOOK AT MY VALVE COVERS)

Them's some nice valve covers you have there! I didn't realize that the engine is still out of the car, you have a lot of room to work and do this right.
Darn! Now I gotta buy another keyboard!

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