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Topic: Help with carb install

in Forum: C3 Fuel, Emission Control, and Exhaust Systems

Help with carb install

Posted: 3/3/07 1:30pm Message 1 of 13
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Savannah, GA - USA
Joined: 1/20/2005
Posts: 936
Vette(s): 1982CE,32,000 and counting. (fast!!) 1981 Vette, black on black. ZZ4 (quick!!)
This is not Vette,however it is for my wifes beautiful 71 Z/28.I'm so tired of the Holley thats on there that I went a bought a Eldebrock quadra jet..I know this is pretty much bolt on stuff.Any opions on this?Was the quad.pretty much adjusted right out of the box?My big problem is where do you hook up the electric choke.That alone would be very helpful.Thanks.
 
Post was moved by Darryl81
I know this is not a ? for a vette, but a small block chevy is a small block chevy. And I don't want to see this post getting "lost"  so I felt it should be put here. If one of the others in Admin have a better spot for it, then do what is necessary.
Darryl812007-03-04 16:53:27


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Help with carb install

Posted: 3/3/07 5:15pm Message 2 of 13
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Duncanville, TX - USA
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Vette(s): #1-1974 L-48 4spd Cp Med Red Metallic/Black deluxe int w/AC/tilt/tele./p/w-p/b/ Am-Fm/map light National/Regional/Chapter NCRS "Top Flight" #2-1985 Bright Red/Carmine Cp.L-98/auto Member: NCRS, NCRS Texas, Corvette Legends of Texas
You should be able to run that thang right outta the box. You may need to adjust the idle mixture, and speed later, but I would leave it as is for a few miles. That is, as long as it will start and run with no problems. Then, just drive it for a while, and let it get all soaked up with fuel. If it needs any adjustment, that's when I would suggest doing them.
The 'lectrical choke just needs a 12v source, only when the engine is running. Just find a circuit that will handle the extra amperage for a few minutes, and tie into that. You should find a couple of extra "IGN" terminals in the fuse box. That would be a good spot to tie into. Be sure to put an inline fuse in the circuit, tho, just in case. Ya never know...


Joel Adams
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Help with carb install

Posted: 3/3/07 5:24pm Message 3 of 13
Former Member
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Savannah, GA - USA
Joined: 1/20/2005
Posts: 936
Vette(s): 1982CE,32,000 and counting. (fast!!) 1981 Vette, black on black. ZZ4 (quick!!)
Wow! had no idea.Inside the box was a CD.I put it in and this real nice guy walked you through the install.He was useing a 327 69 Camaro as the mule.Everything he did I allready new except when he got to the electric choke.Simple.You ground it to the elec. choke body.The hot goes through the fire wall and into the fuse box.It has a plug on the end that goes right in one of the empty Acc.Thats it.I've alleays had Holleys except for a 70 SS camaro that had a quad.It preformed flawlessly.I know my wife will be happy.She took off the Holley and got out the Mothers power ball and strated on the valve covers.Went to walmart and she decided to get a rattle can of orange engine paint.She wants to paint the intake.She is really pretty good at working on cars.One time she replaced the fuel pump on my 78 Bandit TA.It's not as easy as a small block.The pontiac motor 455 fuel pump is not in the same place and is a pain to get to if you don't have a lift but she did it ALL by herself.Got out from under the car and cranked it up! She's a keeper.Smile zgator2007-03-03 17:26:52


Help with carb install

Posted: 3/3/07 5:30pm Message 4 of 13
Former Member
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Savannah, GA - USA
Joined: 1/20/2005
Posts: 936
Vette(s): 1982CE,32,000 and counting. (fast!!) 1981 Vette, black on black. ZZ4 (quick!!)
[QUOTE=Adams' Apple]You should be able to run that thang right outta the box. You may need to adjust the idle mixture, and speed later, but I would leave it as is for a few miles. That is, as long as it will start and run with no problems. Then, just drive it for a while, and let it get all soaked up with fuel. If it needs any adjustment, that's when I would suggest doing them.
The 'lectrical choke just needs a 12v source, only when the engine is running. Just find a circuit that will handle the extra amperage for a few minutes, and tie into that. You should find a couple of extra "IGN" terminals in the fuse box. That would be a good spot to tie into. Be sure to put an inline fuse in the circuit, tho, just in case. Ya never know...[/QUOTE] Good idea! Where you one go to get and inline fuse or do you buy another wire with on on it?
PS.She wanted the shinny one and it does look good.Thats why my wife is doing all the detail on the engine.
PSS.We drove all over town with the Vette,T tops off!!!!Smile



Help with carb install

Posted: 3/3/07 5:56pm Message 5 of 13
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Duncanville, TX - USA
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Vette(s): #1-1974 L-48 4spd Cp Med Red Metallic/Black deluxe int w/AC/tilt/tele./p/w-p/b/ Am-Fm/map light National/Regional/Chapter NCRS "Top Flight" #2-1985 Bright Red/Carmine Cp.L-98/auto Member: NCRS, NCRS Texas, Corvette Legends of Texas
You can get simple in-line fuse holders at any parts place, or even Radio Shack. Does the info you got with a carb give you any idea of how many amps the choke will use? I would guess a 15-20 amp fuse would do it.
It's kewl they sent ya a CD with it!!!


Joel Adams
C3VR Lifetime Member #56    

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"Money can't buy happiness -- but somehow it's more comforting to cry in a CORVETTE than in a Kia"

Help with carb install

Posted: 3/3/07 7:56pm Message 6 of 13
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Savannah, GA - USA
Joined: 1/20/2005
Posts: 936
Vette(s): 1982CE,32,000 and counting. (fast!!) 1981 Vette, black on black. ZZ4 (quick!!)
God my wifes out working again.I've got vortec heard on it with some cast alum valve covers.My wife has allready taken those off for polishing.Well the red wire don't seem long enough.I'm going to have to splice in some more so I guess thats where I'll put the in line fuse.They want you to use one of those acc spots in the fuse thats are not being used.I guess it don't matter what one.
My. wife wants to spray the MC with that cast-blast type of paint.She knows more that I think she does.Shes allways around car talk,at car shows,listens to me and my friends talk or just me tell her what I'm doing or what I have to do.I allways thought that stuff rolled off her like water off a ducks back but I guess some of it stuck.She is proud of a bruse she got working on it earler.I just came out of the shower and she was not in the house.I looked outside and there she was bent over the fender,trouble light on.She is amazing sometimes.Anyway,since I have to add a little more wire should that be the place to put the fuse?
 
The CD should you how to adjust the idle mixture screws and after that you adjust the main idle screw.This is if you need to.The guy on the CD said that these carbs are good right out of the box.There are 2 more sections on the CD about how to change the jets and how to take out the metering rods.It also contains a section on how to mod. for more performance.I haven't looked at that part yet.Even though I knew how to do this,I can't even remember how many carbs I've do over the years,It was cool watching sommeone do it while explaing every step.My last ?.is my Vac on a 350 timed vacume or full vacume?That will tell me where to put the the lne.
zgator2007-03-03 20:11:33


Help with carb install

Posted: 3/3/07 8:12pm Message 7 of 13
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Duncanville, TX - USA
Joined: 11/8/2003
Posts: 20214
Vette(s): #1-1974 L-48 4spd Cp Med Red Metallic/Black deluxe int w/AC/tilt/tele./p/w-p/b/ Am-Fm/map light National/Regional/Chapter NCRS "Top Flight" #2-1985 Bright Red/Carmine Cp.L-98/auto Member: NCRS, NCRS Texas, Corvette Legends of Texas
You got ya a good one there, Mike!! Better keep her!!!

Yeah, install the inline fuse in between the splice. I have to question the "ACC" install, tho. That would mean the only time the terminal is "hot" is when the key is in the ACC position. You might want to test the terminal first, to see that it has 12v with the key on, in the "Run" position. If that car has extra terminals marked "IGN", that would be the place to put it, unless the "ACC" terminals are in fact hot with the engine running.
Ya might need to ax the little Lady where to put it...she may know more than either of us!!

We both posted at the same time! I missed the question on the vacuum. Most of the engines are run off of ported vacuum. That means, there is no vacuum until the throttle is opened a bit. The ports for this will be on the bottom part of the carb, but above the throttle blade height. Adams' Apple2007-03-03 20:16:54


Joel Adams
C3VR Lifetime Member #56    

My Link


(click for Texas-sized view!)
             NCRS

"Money can't buy happiness -- but somehow it's more comforting to cry in a CORVETTE than in a Kia"

Help with carb install

Posted: 3/3/07 8:30pm Message 8 of 13
Former Member
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Savannah, GA - USA
Joined: 1/20/2005
Posts: 936
Vette(s): 1982CE,32,000 and counting. (fast!!) 1981 Vette, black on black. ZZ4 (quick!!)
Yeah Joel she is.She'a allready barking orders about up and at'em early.I want that carb on tomorrow.
I should mention that the engine in her Z/28 is a 4 bolt main truck block that I converted to the vortec.....Well I'll tell ya.I've got the match #'s LT1 in the shed all wrapped up real nice and packed with oil.Over the last 7 yrs. that I've had it i've finally got it all back together and I'm scared to use it but I know I should.The engine that in the car right now will get up and get it rear nice.I've got the 373 posi rear so it's a good stop light car if you know how to hook.My wife just smokes it and allmost loses it.Shes not used to how a posi want to swap ends when the tires light up.I've shown her how to do it.Shes better but thats what she likes to do is put on a show!!
zgator2007-03-03 20:35:59


Help with carb install

Posted: 3/3/07 8:34pm Message 9 of 13
Former Member
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Savannah, GA - USA
Joined: 1/20/2005
Posts: 936
Vette(s): 1982CE,32,000 and counting. (fast!!) 1981 Vette, black on black. ZZ4 (quick!!)
That makes perfect sence about the Vac advance and once again you are right.I should have thought a little more before I spoke,I would have known that.Embarrassed


Help with carb install

Posted: 3/3/07 11:06pm Message 10 of 13
Former Member
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Savannah, GA - USA
Joined: 1/20/2005
Posts: 936
Vette(s): 1982CE,32,000 and counting. (fast!!) 1981 Vette, black on black. ZZ4 (quick!!)
Joel,I used to run my pvc to a tee with the power brake.Thats the only place I had left with the Holley.Should I Tee it somewere else?


in Forum: C3 Fuel, Emission Control, and Exhaust Systems


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