Time to Ditch The Edelbrock!

[Daves69]

Just remember the Holley is gonna want clean fuel. The needle and seat in them love to pickup debris. Other than that they are awesome

This is so true. I once watched a guy get so pissed at his six pack for needle /seat flooding problems he unbolted the manifold with carbs on it and threw it into the corner of his garage. One of those moments in life you don't forget!

 

[dvw]

Have you taken it apart and puled the needles out? You could have had it fixed in the time it took to post here, just sayin. Oops I had to edit this for being a smart ***. I see its been taken apart. Nothing makes me madder than when I "make" a repair and it fails to correct the problem. That being said 99% of the time it's something I missed. There is only one way it can flood. Fuel coming around the seat or through the needles. There is no other passage. If the needles seal then the floats are not shutting them. Remove the lid. Do the floats move freely. Turn it upside down and blow into the inlet. The weight of the floats should keep the needles sealed. You say you polished the needles. They are not Viton rubber? They should be. Weigh the floats. Is one float heavier than the other? Other than fuel pressure above spec or a cracked lid there is no other issue that would cause flooding.
Doug

 

[lewtot184]

spitting up thru the throttle bores is late timing/lean condition, or an intake valve not fully seating. cross fire on spark plugs could cause it. fuel dumping in the the carb is either dirt/fuel pressure too high/wrong adjustments. if it were me i'd address these issues before i bought another carb. spending several hundred dollars for another carb and ending up with the same issues will really upset you.

any carb will be subject to problems if not used within the design parameters. the AFB's are more forgiving than the holleys simply because you can't break them. people don't understand the carter carbs and edelbrock hasn't helped the issue with poor calibration OOTB. if your willing to tell us what your carb model is, ignition tune-up, and what your engine specifics are maybe we can solve the problems before you buy another carb. by all means buy a holley if that makes you happy but don't do it unless you sure there won't be a carry over of problems with it.

 

[Bill Monk]

Not a fan of the edelbrock either but it sounds like it's more of a problem with this carb than the line. Either way, go holley with vacuum secondaries. Not sure what you are running but I've had good results with the street avenger series. Stay away from the double pumpers for the street or if you can find a good one, a carter thermoquad. Opinions vary on these but when they are running right, they are hard to beat.

 

[coloradodave]

I agree with Doug, especially about the needles, which should be viton rubber tipped. They can't be polished but are much more forgiving of particles in the fuel. Condemning a whole line of carburetors because of experiences with one or even a few isn't going to help. I've used, raced with and sold Carter AFBs, Webers, Quadrajets, Thermoquads, Holleys and a couple of brands that are so old the names escape me in the last 50+ years. All could work great or make you pull your hair out, depending on the day of the week. Yes, we all have our favorites, but that doesn't mean all the others are junk...

 

[BeeKool]

Sometimes you just get a lemon.
I would be interested in knowing the exact problem, if it isn't the carb then you will know when the next carb doesn't work well either. But if changing the carb does correct the problem then you may never know the exact cause of the headaches.

I'm with you Bru, enough time has been wasted. Roll the dice and swap the carb out. Wash your hands of it. (Hopefully)

What type of Holley might you be after?

 

[kjalltrac]

Throwing my 750 edelbogg in the trash as well, came with the car and have had nothing but trouble with it, pain in the *** with the newer fuel with ethanol in it, boil the fuel, and gets hard to start when sitting for 10 minutes.
Will use a qf850 dp instead. have tried a holley 850 dp, and what a difference at wot.
I tune my carbs with 02 sensor.

 

[dvw]

Here's the 2 set-ups run on my current car. The Pro-Systems have been the quickest at 9.02@149. The Edelbrocks have been 9.04@148. All are 750's. The Edelbrocks idle better (Holleys have the power valves blocked so idle us fat). A pair of the PS are about $1575, the Eddys are about $690. Though The PS are very nice, is .02 worth $900?
Doug

 

[Superb Bee]

is .02 worth $900?
Doug

View attachment 400638 View attachment 400639

I have paid more for less

 

[lewtot184]

i drive on a ch28 with two edelbrock 600's and have to say it's the best intake system i've ever had. prior to the quads i was a die hard six-pak guy; not any more.

 

[Bruzilla]

Well, the needles look fine, but in a last-ditch effort, I've ordered a new set of seats and needles. I'll risk $14 on this fixing the issue. If that doesn't work, I'm done.

As for what Holley I want, 750 DP w/vac secondaries and electric choke. I've been looking at some on ebay, but keep seeing "Just taken off... ran great when removed... might want to get a kit."

 

[Sonny Black]

Sonny is going with a 750 DP / E'choke...........sick of my "stock" POS

 

[MarPar]

Fixing a flooding carb is like fixing a running toilet, same principal.
Doug

just jiggle the handle?

 

[Hemirunner]

The Edelbrock Thunder series carbs are the simplest, most tunable carb out there for the least amount of coin. Lots of bang for the buck. Those of you who never take the time to learn how to tune one are really missing out. The Performer series aren't quite as tunable but aren't any harder to learn. The huge book that comes with them is great.

 

[lewtot184]

The Edelbrock Thunder series carbs are the simplest, most tunable carb out there for the least amount of coin. Lots of bang for the buck. Those of you who never take the time to learn how to tune one are really missing out. The Performer series aren't quite as tunable but aren't any harder to learn. The huge book that comes with them is great.

so much can be learned from the booklet; so few try to read and understand it.

 

[miller]

so much can be learned from the booklet; so few try to read and understand it.

You can lead a horse to water, but you can't make...

 

[Phillipkj4]

I am thinking myself of switching to a Holley right off the shelf myself. Thinking the 670 Street avenger myself.

 

[mentor70]

I run this 750 HP on my 306 SBF...the venturi size is the same as a 650, but the calibrations for the metering circuits are different. I had this carb recalibrated to a 650 size internally. Works great, i tune it with vacuum gauge and AEM wide band 02.

 

[wsutard]

Wow, you guys make me want to get rid of my Eddy as well...

 

[lewtot184]

Wow, you guys make me want to get rid of my Eddy as well...

don't let the internet fool you. i've been playing with carbs since 1968. ran a lot of holley stuff thru the years and there not any better than anything else. i call it the holley hoax.