Just converted my '85 305 to a holley carb, need help with a throttle bracket - El Camino Central Forum : Chevrolet El Camino Forums
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Old 07-22-2012, 07:29 AM
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Default Just converted my '85 305 to a holley carb, need help with a throttle bracket

Its a '85 with a 305 engine and th200 metric trans.

I just installed a holley 4150 street avenger carb and need to know what brackets i need to buy to get my kickdown cable and throttle cable working.

Been searching around and found this:

http://www.jegs.com/i/JEGS-Performan...57310/10002/-1

Do i need the optional bracket at the bottom of that page?

And where/how do i connect my throttle cable to the carb. Looks like i need a stud of some sort.

Thanks for your time!
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Old 07-22-2012, 08:13 AM
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You should be able to take the stud needed for the throttle cable from the old carb. As for the kick down I'm not sure about the th200 but I used both brackets you found to work with the 700R4 I have in my car. I think the lower bracket you see in the pic is only for the 700R4 and 2004R overdrive tranys with the TV system. Go to Holley.com and you'll probably be able to find the correct brackets for your application.

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Old 07-22-2012, 08:37 AM
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That is a clean setup man!

My kickdown/tv cable looks exactly like yours so i might need the extra bracket. We'll see... I can always return it.

I checked holley and they sell a simlar setup with an optional bracket they say its for a 700r4 though.
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Old 07-22-2012, 08:49 AM
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Quote:
Originally Posted by lukem80 View Post
That is a clean setup man!

My kickdown/tv cable looks exactly like yours so i might need the extra bracket. We'll see... I can always return it.

I checked holley and they sell a simlar setup with an optional bracket they say its for a 700r4 though.
Yeh, on the Holley site you should be able to look up the street avenger carb and it will list the brackets you need. Thats what I did for mine. But as you said the lower bracket was listed as specific to only the 700R4 & 204R with the TV system. Does your trany have an overdrive?
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Old 07-22-2012, 10:22 AM
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Nah no overdrive. Th200. I think its similar to a th350. Just need the kickdown to work when i stomp the gas pedal lol.

I guess i can hook it to the bottom of the stock holley linkage and that will probably work.
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Old 07-22-2012, 11:12 AM
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Yeh you can probably make that work with a few adjustments. On the 700 & 204s Its more critical because the cable controls fluid direction and pressures in the trany and if they aren't set rite you get a fried trany.
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Old 07-22-2012, 04:49 PM
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What CFM rating is the new carb ? Some times we have to fabricate items for linkage changes, where it's a not-stock set-up. Hope you get it figured out.
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Old 07-22-2012, 05:19 PM
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The
lowest CFM street avenger is 670 CFM not sure how it will work on a stock 305, but the built 305 i had it worked great,and i still run the Holley Street avenger carbs ! great right out of the box ............
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Old 07-22-2012, 06:58 PM
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Holley is the one and only carb! I don't understand why some people shy away from them. I grew up with them and they're the only carb I want on anything I drive. The 670 Avenger is what's on my car now and it's the balls and most importantly the motor likes it.
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Old 07-23-2012, 05:59 AM
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don't turn my thread into a Q-jet vs Holley deal that happens on here a lot.

I'm just going to rock this 305 till it explodes then probably do a 350/700r4 swap or maybe a 5.3/4L60E if I can get it cheap enough

I thought about buying a NOS plate and maybe helping this 305 reach boat anchor status even quicker! lol
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Old 07-23-2012, 06:42 AM
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Just out of curiosity do you know what CFM it is? I always thought Holley made a 570 CFM street avenger.
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Old 07-23-2012, 11:29 AM
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exactly right 570cfm.

I had a edelbrock 600cfm on a 318 mopar for 10 years and its done well. i'm not too worried about mpg's. I don't drive this thing everyday
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Old 07-23-2012, 02:27 PM
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Quote:
Originally Posted by lukem80 View Post
don't turn my thread into a Q-jet vs Holley deal that happens on here a lot.

I'm just going to rock this 305 till it explodes then probably do a 350/700r4 swap or maybe a 5.3/4L60E if I can get it cheap enough

I thought about buying a NOS plate and maybe helping this 305 reach boat anchor status even quicker! lol
Didn't mean to do that I've got nothing bad to say about the Eddy that was on my car it ran great with no problems. I guess its all about what you're used to.
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Old 07-24-2012, 05:44 PM
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I had Holleys run great right out of the box too. Usually the 3310 vac secondary models, but used one 1850 that ran fine too. That's a 600 cfm if I remember correctly....

I have a Holley marine carb on my boat engine too, a spread-bore type.

I would think the 570 would be ideal for a 305....
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Old 07-24-2012, 06:04 PM
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Yeh I agree the 570 should be the balls on that motor, plus with the springs you can easily adjust when you want the secondaries.
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