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Re: why the hatred for the eddy 750 carb
[Re: gdonovan]
#1577842
02/15/14 04:30 PM
02/15/14 04:30 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 find it amusing that people will spend vast amounts of time on Holley carbs "drilling this circuit" or "swapping out this air bleed" or "trying this modification" but won't spend some time learning how AFB's work which are the simplest of devices.
BAM...
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Re: why the hatred for the eddy 750 carb
[Re: RSNOMO]
#1577843
02/15/14 04:47 PM
02/15/14 04:47 PM
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Joined: Jan 2003
Posts: 24,562
Brookeville, Md
Mr.Yuck
Not enough dumb comments...yet
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Not enough dumb comments...yet
Joined: Jan 2003
Posts: 24,562
Brookeville, Md
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Quote:
Quote:
I find it amusing that people will spend vast amounts of time on Holley carbs "drilling this circuit" or "swapping out this air bleed" or "trying this modification" but won't spend some time learning how AFB's work which are the simplest of devices.
BAM...
I've never drilled this or swaped air bleeds, as a matter of fact Most of the holleys I've run haven't even had air bleeds. I've swaped out Eddy 750's twice for 750 DP's, and a carter 625 comp series for a 750 and evey time the car dropped et w/ no other mods. Mild 440 w/ brand new Eddy 750 (tuned) went from 13.11 (at best) to 12.90 w/ a 20+y/o holley and a rebuild kit. 383 went from 12.89 to 12.68 with a 750DP tuned for a 360, and a 340 went from 14.20 to 13.82 w/ a 750HP.
Go to any car show and look under the hood and you'l find lots of Eddy/Carters, go to the track and look under the hood and you'll see lots of Holleys. Just how it is.
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Re: why the hatred for the eddy 750 carb
[Re: Mr.Yuck]
#1577846
02/15/14 06:00 PM
02/15/14 06:00 PM
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Joined: Sep 2004
Posts: 22,873
Chicken coop
dustergirl340
Chicken Little
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Chicken Little
Joined: Sep 2004
Posts: 22,873
Chicken coop
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Quote:
Quote:
I have a stock 1407 edelbrock carb on a street hemi with an m1 (crate engine intake)
It starts great, runs great, and is fast.
It has run 12.82 @ 107 mph 4120#
I suppose a holley would get me in the 11's!!!! 
no but I bet it'd run 12.55 or better.
I run 12.50's @ 105 MPH
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Re: why the hatred for the eddy 750 carb
[Re: gdonovan]
#1577847
02/15/14 06:07 PM
02/15/14 06:07 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:
Quote:
I don't know how long gdonovan has been doing carbs, but I suspect a while...
A long time, hell I'm even factory Mopar trained for Thermoquads, Carter BBD's and Mikuni carburetors.
A lost art now, clearly some folks just want "bolt on and go" pieces that work "most of the time" fat and safe which is fine by me.
Gives me the advantage in a race.
Perhaps you could give these guys some advice, there seems to be some issues with an "out of the box" Holley.
Oh no...
I avoid Holleys like the plague...
Last one I messed with was after it caused an engine fire(imagine that)...
BBD's...
Memories...
(One of the first was on a 'Super-Six' many years ago...
In a '78 Fury...
That car would walk on a whole buncha' 318's)...
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Re: why the hatred for the eddy 750 carb
[Re: RSNOMO]
#1577848
02/15/14 06:33 PM
02/15/14 06:33 PM
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Joined: Jan 2003
Posts: 24,562
Brookeville, Md
Mr.Yuck
Not enough dumb comments...yet
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Not enough dumb comments...yet
Joined: Jan 2003
Posts: 24,562
Brookeville, Md
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Quote:
Your three examples trump everything that's been listed here???
I don't know how long gdonovan has been doing carbs, but I suspect a while...
I've been playing with Carter's for 35 years...
It's all been for naught???
Tell you what, come over here and walk through the pits at the Pure Stock Drags...
I'm sure you'll get any pertinent info you might need regarding Carter's if you don't like what you see here...
You are funny, sure any carb can be tuned. Seems like the only people here that can get them working are "experts". I'm no expert. I have used both (still have a Strip kit in the garage), the Holley works better for me and for MOST. Sure you can make anything run, how much time and labor? It's called pure stock for a reason, walk thru a any other line and you'll see mostly Holleys or Holley based carbs. And what examples do you have? One artical that used a 100 different combos? Or the guy that has two carters? Have you ever raced a car one weekend w/ one carb and another the next? I took an old beat up Holley I bought for $30 rebuilt it almost to stock and ran better et and MPH than an Eddy I (and a master mechanic friend) spent many track hours tuning. I was very happy when the car went 13.11. But even happier when it went 12.90.
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Re: why the hatred for the eddy 750 carb
[Re: gdonovan]
#1577849
02/15/14 06:35 PM
02/15/14 06:35 PM
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Joined: Jun 2006
Posts: 5,161
CT
GTX MATT
master
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master
Joined: Jun 2006
Posts: 5,161
CT
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The problem is there are more people that think they are sealed units than don't.
Then they are very much in the wrong hobby and are in the vast minority, perhaps its just were you live.
Gary, I will say, even in these parts there are a lot of people with older cars who don't work on them, and certainly many who won't open up a carb. Some of them are my friends, and no matter how much I try I just can't get them to open up their carbs, recurve their distributors, etc.
I had a friend with the 750 Eddy on his Road Runner. It ran OK, but generally felt flat and lacked sharp response, no matter what was done to it.
Another buddy who HATES Holleys used to have an 800 and 850 Double Pumper on his high 11 second dart. He swapped to an Eddy 800 when they came out and said that the difference in throttle response was insane. He had played with the Holleys alot and the Eddy killed it OOTB. In fact, he refuses to touch anything on the 800 because he doesn't want to screw up what he has. I myself prefer Holleys, but I value his opinion. And I've been in the car, it hits like a MFer when you snap the throttle open from a roll.
My first friend swapped his 750 for an 800 AVS on his Road Runner and it ran much better right OOTB and even better with tuning. It is MUCH thirstier though, but who cares about MPG.
I generally like Holleys but if given a Carter/Edelbrock I don't really care, they all need fine tuning and all can work well. I think the issues with the 750 stem from the calibrations internal to the carb. But one thing is for sure it seems much more troublesome than most other carbs. 
Now I need to pin those needles, got to feel that heat
Hear my motor screamin while I'm tearin up the street
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Re: why the hatred for the eddy 750 carb
[Re: GTX MATT]
#1577851
02/15/14 06:45 PM
02/15/14 06:45 PM
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Joined: Jun 2008
Posts: 10,847
Oakdale CT
gdonovan
I Live Here
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I Live Here
Joined: Jun 2008
Posts: 10,847
Oakdale CT
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Quote:
Gary, I will say, even in these parts there are a lot of people with older cars who don't work on them, and certainly many who won't open up a carb.
This isn't limited to carburetors as you noted, when I was running Relentless Performance there was a sizable number of people who would just throw a car together and declare it done.
Tweaking the cam timing, distributor timing, fuel pressure, injector size, etc, etc was a concept they could or would not embrace.
In my experience that's where the real gains are, honing the car till it runs its best. At the other end of the spectrum, I attended a dyno event in Ohio where I worked on a guys calibration and made over 30 pulls!
There was literately nothing left on the table when we were done.
"I think its got a hemi"
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Re: why the hatred for the eddy 750 carb
[Re: dustergirl340]
#1577853
02/15/14 08:01 PM
02/15/14 08:01 PM
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Joined: Feb 2005
Posts: 222
Onalaska, Wi
sixtyninefuchs
enthusiast
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enthusiast
Joined: Feb 2005
Posts: 222
Onalaska, Wi
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Quote:
Quote:
Quote:
I have a stock 1407 edelbrock carb on a street hemi with an m1 (crate engine intake)
It starts great, runs great, and is fast.
It has run 12.82 @ 107 mph 4120#
I suppose a holley would get me in the 11's!!!!
no but I bet it'd run 12.55 or better.
I run 12.50's @ 105 MPH
You win the race.......but I got ya by exactly 100hp 
3200# duster 105mph = 293hp........4120# charger 107mph = 393hp
750 edelbrock can support decent power if you can actually tune your car.
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Re: why the hatred for the eddy 750 carb
[Re: dustergirl340]
#1577856
02/15/14 08:33 PM
02/15/14 08:33 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:
mine's a pretty fat Duster at 3,450
My A-body was 3150 with me behind the wheel...
A little 'weight ' in the boot???
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Re: why the hatred for the eddy 750 carb
[Re: RSNOMO]
#1577858
02/15/14 09:09 PM
02/15/14 09:09 PM
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Joined: Sep 2004
Posts: 22,873
Chicken coop
dustergirl340
Chicken Little
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Chicken Little
Joined: Sep 2004
Posts: 22,873
Chicken coop
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Quote:
Quote:
mine's a pretty fat Duster at 3,450
My A-body was 3150 with me behind the wheel...
A little 'weight ' in the boot???
Our '76 Dart weighs 3,400 pounds. Our '72 Challenger weighs 3,340 pounds. lol...the later A-bodies are pretty heavy. But our '65 Dart should weigh in at 2,900 race weight.
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Re: why the hatred for the eddy 750 carb
[Re: dustergirl340]
#1577859
02/15/14 10:52 PM
02/15/14 10:52 PM
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Joined: Jan 2004
Posts: 8,233
fredericksburg,va
cudaman1969
master
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master
Joined: Jan 2004
Posts: 8,233
fredericksburg,va
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Quote:
Quote:
Quote:
mine's a pretty fat Duster at 3,450
My A-body was 3150 with me behind the wheel...
A little 'weight ' in the boot???
Our '76 Dart weighs 3,400 pounds. Our '72 Challenger weighs 3,340 pounds. lol...the later A-bodies are pretty heavy. But our '65 Dart should weigh in at 2,900 race weight.
My 70 duster 383 auto 8 3/4 all steel one car seat and roll bar weighted 2980. What you got lead floor mats?
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