Holley's science vs Edelbrock simplicity?

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j par said:
On a Edelbrock I've always check the float levels but they've always been perfect on everyone ever touched. Guess I just got lucky. Also I've never been in any kind of race to do anything on a carburetor so being able to do it real fast doesn't help me any...


You do realize all your precise tuning is lost as soon as the barometric pressure changes from the time you tuned it and also anytime you go to a different elevation?

If your suggestions are going to be spend $2, 000 on two thousand-dollar Hollies then yes please keep your suggestions, smart move..


No duh....

Agreed.


LOL I look who cometh forward with the most comments LOL... FISH ON!!
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To the "you lose your precision tune when the barometric pressure changes" is dead wrong. Dead wrong.

The carb is a pressure differential reading device. As the bars changes, so does the pressure on the bowl vents. As the pressure goes up, the differential across the booster changes and will fatten up the circuit to compensate.

Same when the bars drops. Less pressure across the vents. When that pressure drops, so does the push on the fuel in the bowl.

Greg Anderson told me in the Woodburn pits they didn't change a jet between Denver, Sonoma, Woodburn or Seattle. They did change some air bleeds and emulsion. And that's about all I could get out of him that day.
 
318willrun said:
Totally disagree with the title. I've owned both. Still own both. I do not see any more simplicity with a eddy vs a Holley. Try changing a needle and seat and adjust a float level on a eddy as fast as the 1 minute that I did in this video on a Holley.
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What about tuning on a 4160 style holley are they as simple and as easy as the double pumpers?
 
My combo loved the 750DP it ran for years. Simple it was to tune for me.

My eye wants an Eddy to look like a carter and close to stock. I put a Thunder AVS 800 on. It was easy to tune to my setup.

I do not miss the 750DP at all.
 
1969383S said:
My combo loved the 750DP it ran for years. Simple it was to tune for me.

My eye wants an Eddy to look like a carter and close to stock. I put a Thunder AVS 800 on. It was easy to tune to my setup.

I do not miss the 750DP at all.
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I've never tried the Thunder series. I'd like to though....
 
I like’em. The AFB model can sometimes have a bog spot when you slam the go pedal down. The spring loaded secondary door is really nice for getting rid of that issue.
 
j par said:
How much is that tenth going to cost me!? LOL
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Less than 1k easy. Find a couple of used ProForm 750's and go for it. It's less than 1k if you buy them new. You'll need throttle linkage too. But that's easy.

I'm not a fan of wasting money on older Holley castings. Seen way too many with internal flaws that would drive you nuts. Of course, if you could find a couple of 750's and buy billet blocks and base plates you could do that.

Then you are dealing with main bodies that have a square bore over the primaries where the choke tower was removed.

Or just buy the billet stuff to start with.
 
318willrun said:
I've never tried the Thunder series. I'd like to though....
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The only thing I had do out of the box was change the rods and springs. The 509/292 was rich at idle.
 
318willrun said:
  • I can change JETS faster in a Holley than anyone can in a Eddy. Eddy owners have "minimum" control of jetting with the metering rods/springs, but must remove the top of the carb to change the JETS. And, the jetting on a Holley is much easier to understand than a eddy. Talk about science, on a eddy you have to add/subtract the metering rod into the jet size..... LOL
  • All the other "tuning" you mentioned for the Holley is for precise tuning. Not that the eddy don't NEED it, it just don't offer it... LOL
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Although you may need to change a jet initially most of the time you only have to change the step up rods to make a jetting change to an Eddy, AVS or an AFB
 
j par said:
On a Edelbrock I've always check the float levels but they've always been perfect on everyone ever touched. Guess I just got lucky. Also I've never been in any kind of race to do anything on a carburetor so being able to do it real fast doesn't help me any...

You do realize all your precise tuning is lost as soon as the barometric pressure changes from the time you tuned it and also anytime you go to a different elevation?

If your suggestions are going to be spend $2, 000 on two thousand-dollar Hollies then yes please keep your suggestions, smart move..


No duh....

Agreed.


LOL I look who cometh forward with the most comments LOL... FISH ON!!
Click to expand...
  1. Glad to hear your floats have been perfect :D ... and the speed of changing needle and seat was to show ease and simplicity. Not a race ..LOL
  2. No, I guess I failed to realize all my precise tuning is thrown out the window :D
  3. 2k?? I want U for a customer.... BWAHAHAHAAA Even if you went NEW.. Holley 0-3310SA: 750 cfm 4-Barrel Carburetor All Aluminum Construction | JEGS
  4. No, just Duh..... :D
  5. Agreed to..... BWAHAHAHAHAAAAA
:rofl:
 
318willrun said:
  1. Glad to hear your floats have been perfect :D ... and the speed of changing needle and seat was to show ease and simplicity. Not a race ..LOL
  2. No, I guess I failed to realize all my precise tuning is thrown out the window :D
  3. 2k?? I want U for a customer.... BWAHAHAHAAA Even if you went NEW.. Holley 0-3310SA: 750 cfm 4-Barrel Carburetor All Aluminum Construction | JEGS
  4. No, just Duh..... :D
  5. Agreed to..... BWAHAHAHAHAAAAA
:rofl:
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One of these crack wizz keyboard punchers was just recommending $1,000 Holley carburetor on another thread.
It's possible!
Holley FR-80909RD 1350 CFM Gen 3 Ultra Dominator Carburetor- Factory Refurbished
You do realize what you're suggesting is about a $1, 200 Adventure? You're really recommend in for my combination that the best money spent would be $1, 200 on 2 Holley carburetors??
 
66fs said:
Worked on Holleys for years on the street. I will not have one, except to sell. Always working on it, never quite right. Any 4 other barrel is better for the street. My brother had a Holley on his 65 Mustang 289 K motor that was messing up, so I put a MOPAR Carter AVS on it while I rebuilt the Holley. When I was done rebuilding the Holley, he told me to sell the Holley, because he was keeping the AVS. It ran so much better. Sold all my Holley "tuning" parts years ago, now I never have to "dork" with a Holley again. A friend of mine Just pulled all the Holleys from his street cars and replaced them with Edelbrocks after his twin brother had a beautiful 55 Chevy Restomod catch on fire from the Holley. Carters just flat out work.

For informational purposes, to change the fuel mixture with a Carter/Edelbrock, you just change rods. I does not get any better, faster or easier than that.
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I too have had it with Holley carbs last 3 cars all Mopars all had Edelbrock carbs, tuning is a sanp.
I had a friend in High school that lost alot of parts under the hood of a 68 Charger 440 6 pack car due to a float sticking in a Holley carb.
 
318willrun said:
no, i'd get both carbs for 400 or less... good 2nd hand ones...
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Lol..
I'll indulge this rabbit hole..
$400 for the carburetors in perfect running order as in I don't have to buy any other parts.
Hold on a minute now we need the dual quad linkage which is special and quite a bit more complicated when you mount two carburetors sideways and it's what you have to do in most cases with Holley's?
Of course I special little piece to connect both the carburetors to feel hopefully with a fuel gauge hole...
Anything else ??
 
rumblefish360 said:
I like’em. The AFB model can sometimes have a bog spot when you slam the go pedal down. The spring loaded secondary door is really nice for getting rid of that issue.
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Please elaborate on the secondary door
Thanks
 
My experience is limited, but the eddies i bolted on out of the box had satisfactory results.
Set idle mixture and drive.
I didnt really have much to do with the holleys until the last couple years,my problem is i dont like fiddling with things i know little about. Seeing as i dont own any it stands to reason.
The more i have to do with them, i learn that i need a little more patience,and my customers that run them need to learn-not to screw with it.
The couple customers that have them dont seem to understand carbs at all,both need edelbrocks.
 
Had eddelbrock for years but couldn't get one to work on my big block rebuilt a holley 750 and I'll never touch a eddelbrock ever again.
 
j par said:
Lol..
I'll indulge this rabbit hole..
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No rabbit hole.... if you are happy with the eddies, no sense in pulling them. I have a eddy on the '77 Ramcharger. It runs good, so it stays on. I'm not looking to drop the ET on that... LOL. I have a set of 1850's.... one was running on the ramcharger, and the other is what I might consider parts... but may be rebuildable. I've seen 1850's for 50 bucks here. I believe a pair of 1850's would out perform what you have (and i'm not a 1850 fan).
 
I love my little street demon on my 351M. I haven't HAD to open the hood since I installed it almost two years ago. "It just runs".
 
My brother had a Holley on his 65 Mustang 289 K motor that was messing up, so I put a MOPAR Carter AVS on it while I rebuilt the Holley. When I was done rebuilding the Holley, he told me to sell the Holley, because he was keeping the AVS.
I have a factory aka mopar holley carb that came off a 383/440(depending on how you take too) that is the best carb i have ever owned. It is based off the 1850 (600vac secodays)List #6160
How ever i do have a soft spot for the thermoquad.
And would much rather have a avs over AFB because of the ese of the secondary air door spring(just like a Thermoquad!)
 
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