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Re: why the hatred for the eddy 750 carb
[Re: president61]
#1577784
02/12/14 03:43 AM
02/12/14 03:43 AM
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Joined: Nov 2003
Posts: 36,040
Lincoln Nebraska
RapidRobert
Circle Track
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Circle Track
Joined: Nov 2003
Posts: 36,040
Lincoln Nebraska
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Yes there's been alot of neg reports on them. Enough that I thought there was a problem on the 750 assembly line at edelbrock (wrong sized drilled passages or?). I just bought one for $25 that the guy said was running OK in the past. I went ahead & bought a kit & a strip kit for it. I'll know soon.
live every 24 hour block of time like it's your last day on earth
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Re: why the hatred for the eddy 750 carb
[Re: RapidRobert]
#1577785
02/12/14 03:51 AM
02/12/14 03:51 AM
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Joined: Jun 2006
Posts: 5,159
CT
GTX MATT
master
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master
Joined: Jun 2006
Posts: 5,159
CT
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It seems its not well designed to give a good AFR curve on most engines
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: Supercuda]
#1577788
02/12/14 11:58 AM
02/12/14 11:58 AM
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Joined: Jan 2007
Posts: 2,212
Minnesota
peabodyracing
top fuel
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top fuel
Joined: Jan 2007
Posts: 2,212
Minnesota
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I second that emotion. Have had two in recent years; one on a reasonably warmed over 440. Could not get it to quit a slight surging when driving at highway speeds. I tried everything I could think of. Finally put a 750 Holley on the car.
Second one I had was on a warmed over 350 Chevy. That carb worked perfectly, everytime, all the time, no matter what. My son had the car for a couple years and would always forget to put fuel stabilizer in when storing for the winter and it still worked perfectly.
Lead, follow or get the hell out of the way
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Re: why the hatred for the eddy 750 carb
[Re: dustergirl340]
#1577793
02/12/14 12:17 PM
02/12/14 12:17 PM
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Joined: Jan 2003
Posts: 6,497
N.E. Ohio
KillerBee
master
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master
Joined: Jan 2003
Posts: 6,497
N.E. Ohio
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Quote:
Had one on my Duster's original 340 and hated it...car never ran right no matter the tuning we did. Bolted on a 650 Holley and it was like night and day, throttle response was better and the car picked up 4 tenths with the (untuned) Holley. Never looked back.
As mentioned, for a mild street driver they can be decent. Had a 360 with one on it and it ran fine. I think there are better choices out there though.
Same here.
Installed a shiny new Edelbrock 750 on a street/strip 440 4 speed and it NEVER ran right.
Constant stumble off idle, surging under load, TERRIBLE performance compared to my previous Holley 750 DP.
Called Edelbrock tech countless times changed rods, jets and springs over and over and in the end was drilling out emulsion tubes....
Edelbrock techs tried their best and actually sent me parts for free to try with no luck.
They finally admitted the carb was best suited for a stock to very mild small block.
Took the Edelbrock carb off and sold it to buddy who put it on his stock 350 powered truck.
Put the old Holley 750 DP back on and had it tuned and running perfect in 20 minutes....night and day difference in performance and drivability. 
Live and learn....NO shiny Edelbrock carbs for me. 
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Re: why the hatred for the eddy 750 carb
[Re: president61]
#1577797
02/12/14 12:50 PM
02/12/14 12:50 PM
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Joined: Jan 2003
Posts: 11,991
Benton, IL.
DaveRS23
Special needs idiot
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Special needs idiot
Joined: Jan 2003
Posts: 11,991
Benton, IL.
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Recently, success with the CarterBrocks has been hit and miss. When they work right, they are very dependable. But when they don't, they can be a pain to get right. And tuning parts are more difficult to come by for a lot of guys. The two things that I have had to do to most of the CarterBrocks that I have messed with are; changing to stiffer step-up springs and adding weight to the counterweights on the secondary air valve. If you can find a clean used one for a good price, it might be worth it to try one. But if I were going to spend the coin for a new street carb, it would be the new Street Demon. 
Master, again and still
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Re: why the hatred for the eddy 750 carb
[Re: gdonovan]
#1577799
02/12/14 01:51 PM
02/12/14 01:51 PM
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Joined: Mar 2006
Posts: 9,813
MI, usa
dvw
master
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master
Joined: Mar 2006
Posts: 9,813
MI, usa
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Quote:
Quote:
..i was told that the internal design only responds well to a strong
vacuumm signal.
... not for long duration cams
Ran one on my 440 with a .590, worked great (I do my own jetting though). Its now on my Duster with a 5.9 magnum.
I run a pair of them on my 572. Cam is 285@.050". They idle great with the stock primary calibration and 2 steps up in the secondarys. Power? It's been 9.25@147, 3340lbs.
Doug
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Re: why the hatred for the eddy 750 carb
[Re: gdonovan]
#1577800
02/12/14 01:51 PM
02/12/14 01:51 PM
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Joined: Jan 2003
Posts: 6,350
Aurora, Oh.
max_maniac
master
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master
Joined: Jan 2003
Posts: 6,350
Aurora, Oh.
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WOW ----  Look under the hood of just about any Mopar NSS car and you will find the 750's or the 800's. I'm talking cars that can run an index anywhere from a 12.50 et in 1/4 mile to an 8.75 et in the 1/4 mile  They work fine on my car and I run 9.60's and the most I have done with them is maybe change the jet size and the rods to be used. I also know of a few that have changed to a Holley from the 750 and actually went back to the eddy's. I also run one on my 70 Challenger 440 street car with no issues. Russ
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Re: why the hatred for the eddy 750 carb
[Re: max_maniac]
#1577801
02/12/14 01:55 PM
02/12/14 01:55 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:
WOW ----
Look under the hood of just about any Mopar NSS car and you will find the 750's or the 800's. I'm talking cars that can run an index anywhere from a 12.50 et in 1/4 mile to an 8.75 et in the 1/4 mile
They work fine on my car and I run 9.60's and the most I have done with them is maybe change the jet size and the rods to be used. I also know of a few that have changed to a Holley from the 750 and actually went back to the eddy's. I also run one on my 70 Challenger 440 street car with no issues.
Russ
yes that's because you run TWO and you HAVE to use them. If you were able to run two holleys in NSS you would and your times would be better.
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