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Re: Holleys for a hemi?
[Re: Kirby]
#1410769
03/29/13 01:55 PM
03/29/13 01:55 PM
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Joined: Jan 2011
Posts: 4,785
Utah and Alaska
astjp2
master
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master
Joined: Jan 2011
Posts: 4,785
Utah and Alaska
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None, there is not enough space for the float bowls, get a marine or stageV intake and a pair of quick fuel 4160 style carbs with annular booster. Tim
1941 Taylorcraft
1968 Charger
1994 Wrangler
1998 Wrangler
2008 Kia Rio
2017 Jetta
I didn't do 4 years and 9 months of Graduate School to be called Mister!
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Re: Holleys for a hemi?
[Re: astjp2]
#1410770
03/29/13 02:14 PM
03/29/13 02:14 PM
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Joined: Jan 2003
Posts: 75,020
U.S.S.A.
JohnRR
I Win
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I Win
Joined: Jan 2003
Posts: 75,020
U.S.S.A.
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Quote:
None, there is not enough space for the float bowls, get a marine or stageV intake and a pair of quick fuel 4160 style carbs with annular booster. Tim
What he said , the carbs are to close together , Stage 5 would be a nice upgrade.
What actual carbs do you have on it Kirby ? What do you hate about them ?
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Re: Holleys for a hemi?
[Re: JohnRR]
#1410771
03/29/13 02:43 PM
03/29/13 02:43 PM
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Joined: Jul 2006
Posts: 4,179
California
mickm
master
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master
Joined: Jul 2006
Posts: 4,179
California
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really, that is my question as well. like everything else in this world, some will swear by them and some at them. i have them on both my engines, and although it has been years and years since i have worked on a holley, so can't make a fair comparison, i think the carter/edelbrocks are insanely simple to work on, once you grasp the concept of the jets, metering rods and springs. one jet size in a carter is the equivalent of many jet sizes in a holley, and so will make a big difference. the metering rod range will allow you to make roughly a 2 jet size difference, which is a lot. you can change metering rods in about 5 minutes! and, metering rods affect both cruise and WOT, best of both worlds, the only tricky part comes in matching what you need. if you need more WOT and cruise to stay the same, you have to find the proper sized rod. TMI maybe, you may already know all this, and hate them anyway!  but curious why you do...
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Re: Holleys for a hemi?
[Re: mickm]
#1410772
03/29/13 02:52 PM
03/29/13 02:52 PM
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Joined: Apr 2012
Posts: 18,880
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RSNOMO
Moparts Torchbearer
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Moparts Torchbearer
Joined: Apr 2012
Posts: 18,880
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Quote:
I think the carter/edelbrocks are insanely simple to work on, once you grasp the concept of the jets, metering rods and springs.
And then there is Holley...
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Re: Holleys for a hemi?
[Re: RSNOMO]
#1410773
03/29/13 03:07 PM
03/29/13 03:07 PM
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Joined: Jul 2006
Posts: 4,179
California
mickm
master
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master
Joined: Jul 2006
Posts: 4,179
California
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Quote:
Quote:
I think the carter/edelbrocks are insanely simple to work on, once you grasp the concept of the jets, metering rods and springs.
And then there is Holley...
HOLY !!!!  that's as many parts as an entire engine!
exploded view of edelbrock carb
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Re: Holleys for a hemi?
[Re: Kirby]
#1410775
03/29/13 03:29 PM
03/29/13 03:29 PM
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Joined: Jul 2006
Posts: 4,179
California
mickm
master
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master
Joined: Jul 2006
Posts: 4,179
California
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Quote:
First- I must admit that I'm not a great carb guy. The AFB's actually have not been problematic- but are way too rich. Turns my rear bumper blue. Myself, and friends are all set up with Holley's, extra jets, tune parts galore. For these AFB's- I don't know where to start- Jets, rods, whatever else- I would have to buy parts for them. Just trying to simplify vs buying a bunch of parts that I won't use often. 
i know where you are coming from. if it's easier to put a new manifold on, do that. but obviously you are talking manifold, air cleaner, fuel lines, linkage, etc.. (and more small stuff).
to make these work, you won't be talking that many extra parts. your first try will get you close, your second or third will get you there or almost there.
chances are good you can fix your problem with metering rods. if you want to, take the metering rods out and let us know the numbers, something like 68/52 stamped on the rod. take a primary and secondary jet out of each carb, and they will be stamped on the top 086, something like that. these are in thousandths, by the way.
post those and we can make recommendations.
personally, even though you like the holley setup better, i'd give this a couple of tries first. jets and metering rods are around $10 a pair, plus shipping if no one close to you has any.
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Re: Holleys for a hemi?
[Re: StealthWedge67]
#1410780
03/29/13 06:23 PM
03/29/13 06:23 PM
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Joined: Jan 2003
Posts: 75,020
U.S.S.A.
JohnRR
I Win
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I Win
Joined: Jan 2003
Posts: 75,020
U.S.S.A.
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Quote:
Quote:
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.... 
i assume that low to mid range would be great, but how does ~960CFM begin to match up with the ~1300CFM that the dual 4 setup has on WOT?
Not sure about that particular setup, but I believe stock big-block six bbl setups were rated at 1350cfm (350 + 2x500). Last I checked, 1350 was more than 1300.
They are rated at 1350 when you rate a 2bbl using 4bbl factoring , the rating factor is different , they are actually more like 960 ...
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Re: Holleys for a hemi?
[Re: Kirby]
#1410785
03/30/13 10:59 AM
03/30/13 10:59 AM
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Joined: Jul 2005
Posts: 1,954
Blairsden, CA
Triggerfish
top fuel
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top fuel
Joined: Jul 2005
Posts: 1,954
Blairsden, CA
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Holleys will fit on the Mopar marine intake or the Stage 5, but I don't think you'll have much luck getting them to fit your stock intake, especially if you have a factory ram air setup. My bro had problems with the 1407 750's on his 517, so he switched to Eddy Thunder 650 AVS carbs & that made a huge difference in driveabiity, throttle responce & mileage, too (who cares about MPG with a Hemi).
As was also posted, go get an Eddy calibration kit ($65 from Summit)&
switch out your metering rods. Holley's on a Stage 5 intake are cool, but I think two 650's will make you happy. Tim Banning (FHO), told me he's getting over 800 hp on their big stroker Hemis with 650 Thunders.
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Re: Holleys for a hemi?
[Re: Kirby]
#1410787
03/30/13 06:44 PM
03/30/13 06:44 PM
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Joined: Jul 2006
Posts: 4,179
California
mickm
master
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master
Joined: Jul 2006
Posts: 4,179
California
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Quote:
I went out while she was still sleeping, and looked at the some. Rods are all 7147"s, and the # on the base ion the front are both 2540 9756S. Now- I did say was not a carb guy- so don't laugh too much. Where's the jets? 
well, the first thing is to know where you are rich. idle, cruise, power? that is what is going to determine what you change. idle, like any carburetor, is just the idle mixture screws.
on these carbs, the whole top of the carb comes off. the floats are attached to the top, and the fuel bowls are in the base. no need to drain them to change jets. go to the edelbrock web site, you can download a PDF of the manual for those carbs.
i wouldn't take the tops off yet until you figure out where you are rich, and then try some metering rod changes.
i was running a 68/57 (first number is cruise, second is power) in mine. at WOT the A/F meter was showing around 14:1. i changed the rod to a 68/47, and it is now reading around 13:1. done! ready to mess with cruise a bit, and off i go.
jets are what you think they are: the bigger the jet, the richer the mixture. the metering rods sit through the jet at all times, (primaries only, secondary jets have no metering rods and so are unobstructed). the metering rod is connected to a piston which has a spring underneath it. engine vacuum overcomes the force of the spring, and sucks the piston down, so the bigger part of the rod is obstructing the jet, that's cruise. when there is little or no vacuum, WOT, the spring pushes the piston and so the metering rod up, and now the smaller part of the rod is in the jet, so more fuel will flow through.
so with rods, smaller is richer. just like my example. engine to lean on WOT, smaller rod means less obstruction in the jet means more fuel flowing through.
so figure out what you want to change first, and we'll go from there.
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