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Edelbrock 600 CFM on a 360 #980037
04/25/11 05:04 AM
04/25/11 05:04 AM
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Mount Airy, Maryland
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scrag Offline OP
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We are tying to get my son's Dart to run better - currently have a stock 360 with an Eddy Performer intake, 600CFM carb and headers. Car has a slight gas smell when you follow it from the exhaust (black smoke) stumbles initially with hard acceleration and loses some power between 4000 - 5000. I have never tinkered with one before and so where do we start?

Re: Edelbrock 600 CFM on a 360 [Re: scrag] #980038
04/25/11 05:22 AM
04/25/11 05:22 AM
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Granite Bay CA
Kern Dog Offline
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A properly tuned Holley 600 is a great fit for a mild 360 build. I put one on my Bro in laws 72 Duster. It is a '79 360 standard bore with a 340 cam, a Weiand intake, Holley 600 and iron exhaust manifolds. It runs clean and strong.

Re: Edelbrock 600 CFM on a 360 [Re: scrag] #980039
04/25/11 06:04 AM
04/25/11 06:04 AM
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Holly/MI
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Dean_Kuzluzski Offline
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How's the secondary ignition system (plugs, wires, rotor, cap)?? Timing? Total advance checked and functional?

Once proven, it could be time for a rebuild kit, starting with new needle/seat assemblies, a power valve and cleaning out of the metering block passages.

If it's "pig rich", Holley's are known for weeping needle/seat inlets and blown power valves.

Check for a vacuum leak too.


R.I.P.- Gary "Coop" Davis 02/09/68-05/13/04
Re: Edelbrock 600 CFM on a 360 [Re: Dean_Kuzluzski] #980040
04/25/11 06:47 AM
04/25/11 06:47 AM
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Mount Airy, Maryland
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scrag Offline OP
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Carb has less than 500 miles on it - fresh ignition system - all of it. No this is an adjustment somewhere....
I can't imagine it needing to have a different fuel rods to dial it in - instructions are kinda of long winded..

Re: Edelbrock 600 CFM on a 360 [Re: scrag] #980041
04/25/11 07:03 AM
04/25/11 07:03 AM
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kentucky
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well,now that the previous posters have given you lots of great "holley" advice,lets get back to your "edelbrock" carb.lol.
do you have a fuel pressure regulator in-line? if not,you need one. set it at 5psi. where are your mixture screws set? turn them all the way in,and turn them out 1 1/2-2 turns and start there. timing should be 12-15 degrees initial and all in around 2200-2400.

Re: Edelbrock 600 CFM on a 360 [Re: scrag] #980042
04/25/11 09:26 AM
04/25/11 09:26 AM
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Lincoln Nebraska
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Quote:

where do we start?


Assuming 1405 (man choke) or 1406 (elec choke). New needle/seats (avail seperately/cheap), dry setting at 7/16" iirc, idle it for 10 seconds on a level surface then pull the rods/top & fuel level should b at the notch(s) in the float baffles on each side. Make sure the internal choke vacuum pulloff works (1406). Make sure the metering rods & its tree(s) are free up & down. Hesitation at 3-4K, assuming that's WOT? exp w try several steps smaller dia on the power step on the rods & a higher # spring(s) and see if you have several psi at the carb inlet at that point (can run a vac gauge w a psi side out to & taped to the windshield for a test run. As said check psi at idle too


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Re: Edelbrock 600 CFM on a 360 [Re: RapidRobert] #980043
04/25/11 10:25 AM
04/25/11 10:25 AM
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Posts: 16,123
Grand Haven, MI
patrick Offline
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Quote:

Quote:

where do we start?


Assuming 1405 (man choke) or 1406 (elec choke). New needle/seats (avail seperately/cheap), dry setting at 7/16" iirc, idle it for 10 seconds on a level surface then pull the rods/top & fuel level should b at the notch(s) in the float baffles on each side. Make sure the internal choke vacuum pulloff works (1406). Make sure the metering rods & its tree(s) are free up & down. Hesitation at 3-4K, assuming that's WOT? exp w try several steps smaller dia on the power step on the rods & a higher # spring(s) and see if you have several psi at the carb inlet at that point (can run a vac gauge w a psi side out to & taped to the windshield for a test run. As said check psi at idle too




for what it's worth, on my old 360 with a comp XE262 cam, eddie RPM intake, and headers, I had to jet the eddie 1406 down. I ended up using the original secondary jets in the primary, replacing the rods with 7247's, and going with .089's in the secondary. I also had to swap the original (orange?) step up springs with the highest rate ones (natural).


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Re: Edelbrock 600 CFM on a 360 [Re: scrag] #980044
04/25/11 10:46 AM
04/25/11 10:46 AM
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Florida
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vac gauge and timeing light will help dial it in on the idle mixture screws.

set curb idle and get the most vac you can adjusting the IAS and timeing


Re: Edelbrock 600 CFM on a 360 [Re: superbyrd] #980045
04/25/11 11:00 AM
04/25/11 11:00 AM
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Cincinnati, Ohio
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Quote:

well,now that the previous posters have given you lots of great "holley" advice,lets get back to your "edelbrock" carb.lol.
do you have a fuel pressure regulator in-line? if not,you need one. set it at 5psi. where are your mixture screws set? turn them all the way in,and turn them out 1 1/2-2 turns and start there. timing should be 12-15 degrees initial and all in around 2200-2400.






LOL lot's of holley advise...

Make sure the rods are down at idle, loosen screws, slide covers off to the side and see what the rods are doing at idle. I bet there up, must be down at idle so you can adjust the mixture screws. Look at the tuning book and see what jets and rods are in it now. Go back to base line setup if it has been changed.

But like what was said, timing must be in the ballpark first.

Timing light,vacumn gauge and the eldlbrock tuning book is required.
I run the eddie 600(1405) I'm very familer with it.

Re: Edelbrock 600 CFM on a 360 [Re: scrag] #980046
04/25/11 11:03 AM
04/25/11 11:03 AM
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Cincinnati, Ohio
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Quote:

- instructions are kinda of long winded..




Got to understand them and ignition tuning too, to have a chance at this. Read it, learn it, do it!

Re: Edelbrock 600 CFM on a 360 [Re: Challenger 1] #980047
04/25/11 11:37 AM
04/25/11 11:37 AM
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Grand Haven, MI
patrick Offline
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FWIW, when I tuned mine and had to lead it out, I was using an innovate LM-1 wide band O2 meter to tune it.


1976 Spinnaker White Plymouth Duster, /6 A833OD
1986 Silver/Twilight Blue Chrysler 5th Ave HotRod **SOLD!***
2011 Toxic Orange Dodge Charger R/T
2017 Grand Cherokee Overland
2014 Jeep Cherokee Latitude (holy crap, my daughter is driving)
Re: Edelbrock 600 CFM on a 360 [Re: patrick] #980048
04/25/11 04:01 PM
04/25/11 04:01 PM
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Florida
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well that would make it even better

I find a lot of them advanced way to much when my buddys set it by ear,then wonder why it no worky good

results will vary with any tune ups

Re: Edelbrock 600 CFM on a 360 [Re: superbyrd] #980049
04/25/11 05:02 PM
04/25/11 05:02 PM
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Holly/MI
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Dean_Kuzluzski Offline
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Quote:

well,now that the previous posters have given you lots of great "holley" advice,lets get back to your "edelbrock" carb.lol.




Whoops! My bad!

That's what I get for trying to help at 5:30 am before my coffee.

As always, no good deed, or good intentions, go unpunished on Moparts!


R.I.P.- Gary "Coop" Davis 02/09/68-05/13/04
Re: Edelbrock 600 CFM on a 360 [Re: Dean_Kuzluzski] #980050
04/25/11 08:06 PM
04/25/11 08:06 PM
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Taxes & Virus's R-US, NY
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I had one I reworked for my mild 360, and it was a ton better when done, but I drilled out the squirters and played with all kinds of jets, metering rods, etc. ScratchenforTraction has it now. Its still not as good as the Quick Fuel annular carb that replaced it, and not even close to the EZ efi that replaced that carb....If your lucky, he will open it up and give you the jetting I had in it.

To get one right, you will need to spend some time readng the vacuum, the timing, and the plugs. The more timing, the more fuel, etc. I won't even work on an engine that doesn't have a quick advance distributer...It just a waste of time. Learn it once, and you will be an expert...Those carbs run out of fuel in the bowl when you get a tune that's close to being right, just not enough for the fuel squirt the engine needs.

Last edited by Dragula; 04/25/11 08:07 PM.

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Re: Edelbrock 600 CFM on a 360 [Re: Dragula] #980051
04/25/11 09:41 PM
04/25/11 09:41 PM
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Florida
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why yes i do, and it seems to work great on my stock 440 so far.

I set the IAS with the vac gauge and that was it,only needed a little turn to be dead on

only bliped the 2ndarys a little,I am having tranz trouble with mine, but it sure lights 1st gear up real nice

I have no reason to open it up..but if it would be helpfull I would not mind,i will be pulling the intake soon for a vally pan swap anyways

here it is on the 440/weiand intake I am running

6603121-440alumintake.jpg (420 downloads)
Last edited by scratchnfotraction; 04/26/11 09:17 AM.
Re: Edelbrock 600 CFM on a 360 [Re: scratchnfotraction] #980052
04/26/11 12:57 PM
04/26/11 12:57 PM
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The performer intake is a real turd on a 360 want to go slow use it. I would run a stock cast iron one before I would use that intake period. By the way if the edel is sitting on the intake without a 1/4 spacer part of you pig rich problem is just that. get a 1/4 carb gasket set carb as above and some of the richness will be gone.That intake loves to leak at the base of the carb and that is even when brand new!

Re: Edelbrock 600 CFM on a 360 [Re: Paul_Fancsali] #980053
04/26/11 05:20 PM
04/26/11 05:20 PM
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Florida
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on not useing the performer,stock is better,just heavy.

the LD340 would be a real good intake,its on par with the rpm airgap intake

but I do understand run what ya got







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