I had no idea about the secondaries drying out like that. I thought I had a tuning issue. Your the bomb Tony.

Properly explained as usual, no stupid distracting background music that's why he's one of the best!

You are 100% right about guys trash talking Edelbrock carbs because they know nothing about them. Most of them have tried one and didn't know you can't run more than 5.5 lbs of fuel pressure or it leaks gas all over the engine. I have a Carter muscle car series fuel pump designed to work with an Edelbrock carb that has a max pressure of 5.5 lbs and only drops to 5 lbs at full throttle!

Your suggestion of opening the cover and watching the plunger bob was a game changer! Now I KNOW I have the correct step up spring. You sir, are amazing. Thank you!!!!

Uncle Tony does it again I've never seen anybody explain how to tune carburetors like this ever

Glad that I’m not the only guy that likes an edelbrock. They just work.

I agree Tony they are the simplest carbs. Witch means less things to go wrong. No rubber power valves or leaking bowl gaskets.

Another great set of details . Ty "Breaking News" .... No carburetors were harmed in the making of this video !

Thanks Tony, I haven't been able to work since 2009. I'd stopped thinking about this stuff and thought I'd actually forgotten things. For 20 years before that people thought I was magic on tuning & carbs, even other mechanics, just because I knew the tips you talked about! Carter's are the bomb for a street car and people hated them cause nobody understood how to tune them, so I got tons of happy customers and had a blast. Thanks for reminding me! 👍😁

The Edelbrock and Holley’s are both excellent , I’ve had numerous variations over the years . Again thanks again Uncle Tony , your channel is a breath of fresh air for us real backyard / driveway knuckle busters . Cheers

The Carter/Edelbrock is my favorite too they are so simple and always reliable

I've used many of these. Great carbs. A couple of dual setups, but never knew about the empty secondary bowl stumble issue. I'm 53 and still learning. Another great thing about these carbs, no gaskets below float level. So no leaks. Great video, thanks!

many people hate these because they can't tune em. they think turning the idle mixture screws is "tuning"... I personally love them because they give you no trouble once you have the right jets and metering rods in them for your application. and they're not elevation sensitive... not as much anyway.

I'm nominating Uncle Tony for sainthood on his carburetor explanations alone. If the powers that be are grease monkeys, he's a shoe in.

That dry secondary quirk is exactly the bug I’ve been chasing. This makes so much sense, you’re a genius.

Amigo u keep in a language that encourages us with street rod cruisers to do it ourselves. I'm not an expert on carburators but i feel more confident than ever. Thanks bro. God bless

Been years since I tuned these things but your KISS explanation is spot on Tony, Thanks for the refresher .

youre a genius! Ive always wondered why my edelbrock in my D150 stumbled when I dipped into the secondaries for the first time during a drive. Especially after it sits for a few days. Definitely subscribing!

I love edelbrock carbs. Argue with people all the time about them. Thanks for setting people straight concerning there easy tuning and reliability

I just THREW my earphones across my desk. WOW! Thank you. Wife and I bought an '82 K5 Blazer in December for my 40th b-day. The motor has a carb which is my first. I've never had anything other than newer vehicles. This restore was to the 'T' what I wanted since I was 18 years old. Long story short, when I would drive it after a few days of sitting in the garage, the stumble/bog would happen. I've been after it for a while tracking part numbers down, reading manuals, budgeting how much it will all cost for different fixes/possibilities, etc. So I CANNOT thank you enough for this video. I have found NO ONE that has mentioned anything like this since I have been researching this issue. Seriously, THANK YOU! Subbed and thumbed up.

I have a Carter AFB 625 CFM on my 40 year old Dodge B300. I don't think it's original to my vehicle. I've had absolutely no trouble after it sat for over 30 years. The carburetor you are holding is an exact replica of mine. I've learned so much about carburetors from you thanks to your no-nonsense way of explaining it. Thank you so much!

I love the Edelbrock carb. My shelf in the shop has a few sitting on it that I got for free or peanuts... because the guy I got it from said "it's a POS..and I'll never get one again...their loss has been my gain...user friendly for a young hot rodder because if you pick the right size it will give you good results right out the box.

Finally!! Someone on the same page as me!! I run an avs 650 on my 69 camaro, race it every weeknd! My tow vehicle 454 had a holley 750..junk! Put edelbrock 600 pulls better than my Cummins diesel, now the new avs 650 has secondary air valve, ones adjusted instant throttle response!! No flat spots! Great demo bud!

Man just the wealth of knowledge that this man has is staggering.

My Edlebrock was plug and play for my car. Never had a problem with it the whole time I owned it.

Uncle Tony you give the best clarity in your tutorials. I'm always impressed with how easy you make understanding things! Thank you for the bother in making these wonderful videos.

My hot rod sat for over 8yrs poured a little fire maker In the carb.. and it fired right up.. great carburetors. Thanks utg for this video 🤘🤘👍👍

Preaching to the choir I had one on my 84 Buick LeSabre with a 70s Cutlass Oldsmobile rocket 350 Ran amazing for 240,000 miles not saying I did not tuned or work on the daily but it was a passion.

As a teenager, my dad and I ran a Holley on a 67 mustang for a couple of years; it felt like it was always a science experiment to keep running nicely. Moved to Edelbrock and it was an absolute breeze; literally ran the thing for 20 years without opening the carb up (not recommended). Two years ago, I replaced with another edelbrock and it was a breeze to get tunes again. For street and convenience, I would choose these over Holley all day long.

That secondary circuit was news to me. Thank you for that. I watched you lift that step up spring with the metering rod, that was beautiful! Once again a terrific video and I've always liked these carburetors, the first AFB my father put on our 1968 Chrysler 300 in place of the original Holley back in 1971 was a real eye opener. Keep making your great videos!

Holy shit... This was the most enlightening video on the Edelbrock Carburetor I have ever seen. So many people talk shit abut the Edelbrock, but I have never had any problem with them and they are simple to rebuild and tune. This short little video was a wealth of information...

I'm an ls guy, but man your videos make me want to keep my old sbc and build it! Awesome content.

I started liking the AVS/AFB when I realized there were no vertical bowl gaskets to leak. Tuning is much easier than digging into the Holley bowls too. Ride on Tony! You're the best!

As I've never had an Edlebrock Carb and am acquiring my first one! GREAT INFO! Thnx!

This was Awesome! Exactly what I was wanting to know. I just helped a friend's son install a Edelbrock RPM air gap and an edelbrock 650 avs carburetor on his 1988 dodge 150 with a 360. It's set up for sea level and we live at about 4950'. Great video Uncle Tony. Thank you!

so glad to finally find a wrench turner that recognizes the real qualities of the Edelbrock. So many other channels just talk shit about the Holley. I had run Holley since the mid 1960's and I can tell you they are a pain in the ass....always going out of tune with vacuum leaks in the nasty valve body gasket and their choke system never was worth a crap, it too would easily cause too much load up. I finally relented in 1997 and put a 650 Edelbrock on a well built ford 400 in a pickup. I never knew life could be so good since that time. The electric choke has been flawless even to this day on that old "78 4x4. The carb never coughs, never fails. I have never experienced the stumble from dry circuits you describe....ever, just start and run, never fail. It is super easy and convenient to pull the top and check/clean float bowl and make metering adjustments if desired. This design is so superior to Holley for street use it is ridiculous. I have a couple of Demons run on a stroker...the ones before Holley got hold of them..... and they have worked extremely well too but none can match the smoothness and easy start of the Edelbrock.

I love my edelbrock. I'm not much of a carb tuner, so it's nice when the work well out of the box.

Love the channel, Uncle Tony! My best to Uncle Kathy!

Nice. Good ole 1406, ive had one on my small block ford for years and have never had to mess with it. Super easy to rebuild, and to tune. Thanks for sharing your wisdom man.

I use these on almost all my street set ups. Thanks for these easy explanation on the metering rod tune while running.

The AFB's were overlooked because they looked to simple to work so everyone went for the " had to better " more complicated Holley band wagon. I've run AFBs on street in dual quad configuration since the mid 60s, easy to flog on the go. Have a nice pair of Holley 650's for MY 360 tribute build of Dad's '74 D100 shorty stepside. FYI Carter manufactured AFBs for marine use. The primaries and secondaries are the same size,4 big holes. I found mine in used marine salvage yards.

They work great! I have one on my car, haven’t had to touch it since 2004.

Best Video I have ever seen on these carbs! well done , no music no bashing just straight up useful info , I am new to edlebrock and wondered why it would fall on its face on the first secondary opening after days of sitting thanks for the info

Lol love the way you don’t add sugar to your comments. Thank You for your honesty

I prefer these carbs for street use on a square port intake. On a spread bore, a good pre computer controlled Q-get, or a Thermoquad that has not been cracked. I find that these carbs are also prone to boiling the fuel in the carb and are sensitive to fuel pressure. A heat shield under the carb works wonders, and keep your fuel pressure to 4-5 psi and they are a set them and forget them carb that will work flawlessly for years.

I had a '59 Studebaker wagon running a Carter on the 289, she flew!!

I HAVE 2 650 AVS THUNDER SERIES ON A 496 MOTOR IN MY V-DRIVE BOAT EVERYONE SAID THEY WOULDNT WORK BUT ONCE I LEARNED HOW TO TUNE THEM THEY ARE SO RELIABLE I LOVE THEM.

It's amazing that no one talks about the biggest drivability improvement which is the wire into the air bleed trick which makes these run like EFI buy eliminating the lean area just off idle in the transfer slot range which is NOT affected by metering rod, spring or jet changes

thanks for the great school on this carb.

Have had no issues with my edelbrock, easy to tune as well. Thanks Uncle Tony!

This is the best buy far description of explaining how the Edelbrock carb works. 100%helped me out! If u were close to me I'd pay top dollar for u to work on my truck!

I finally found the sweet spot on mine and that's in the garbage. I chased problems for years, sent it back to Edelbrock, and it never ran good. Finally fixed the problem when I put a Holley on there. It was like going from a 2 barrel to 4! Night and day difference and nothing but better performance from the start even before I got it dialed in! That was on my '72 Chevy 402 Monte Carlo. Now, I'm running a Holley Sniper EFI and it is turn key awesomeness! No more cold issues. It really transformed the car into a daily driver that you can hand the keys to the wife. Bye bye carb b.s. and Edelbrock. Hello reliability, driveability, and performance without guesswork.

Man I love how you explain carburetors!

Never knew you could watch the metering rods when the car was running - makes sense though. I need to try that.

I had an '84 Camaro that originally was a 2.8L V6 that I blew up. I swapped that dog with a 305, Holley Street Dominator intake, and a Carter AFB 625cfm. Now THAT was the sweetness! I used to shock Firebird Formulas with the TBI motors!

great video. this would have saved me some embarrassment in high school. AFB Carter on my GS455 stage 1 and edelbrock on my s10. always loved these carbs.

Ask and you shall receive! Lol! Thanks Uncle Tony. Now I'll have a guide to set mine up.

Thanks uncle Tony, just what I need for my ElCamino.

Had an AFB sitting on the shelf along with QJet. Car a bought had a leaky Holly. Grabbed the AFB and bolted it on. Ran fine and idled great; no adjustments. Bought a kit because it was sitting quite a while and will be rebuilding it soon. Q jets are great carbs too. Holly's seam to be more work to set up.

I love when people give information away for free. Thank You kind sir.

Just be aware, they are assembled to run lean, so you will need the tuning kit. Great advice as usual.

My favorite carb too Tony. They work so good it feels like fuel injection sometimes.

Ive played with both Holley and Edelbrock but not an expert by no means as I'm younger, 31. I never understood that bogg down until you've mentioned it here. Super glad the way you used getting into secondaries while warming tires warming tires. Many thanks!

AAAANNND That's why we love Uncle Tony. Short. Simple. Concise. Not just the what, but the why and how, so ya understand the method entirely.

Tony I hope you live forever. The car community needs people like you that have knowledge and aren't afraid to share it. Alot of guys out there seem to think higher of themselves when they have all the knowledge.

I like the quadrajet for daily driver.

First off i wanted to thank you for this no nonsense explanation it was very helpful when tuning my carb on my 66 stang.

Running a 78 360 in a 84 dodge prospector, edelbrock 750. Bought the truck and half built engine for 1000 bucks. Your vids are excellent and i can't wait to watch them all! Never too smart to learn something new. Keep it up!

Always Welcome advice.. Thanks Always Uncle Tony.. learning is growing.. Oi oi oi..

The difference between the AFB and the AVzs is that the vacuum secondaries on the AFB are counterweighted, and the AVS are sprung. That means the AVS is adjustable, the AFB isn’t, unless you want to remove weigh from the counterweights. I’ve never seen that done, but in theory it should work. But I wouldn’t try it unless I had a second air valve to replace the one I tried to modify, in case I s rowed things up. I’m not even sure where to remove weight. The best way to do that would be to drill it out. Or, if the carb is too big for the engine you might try adding weight to the counterweights. Ut the. You have to find a metal that is heavier than the metal the counterweights are made out of, drill out the counterweights and somehow replace that mass with heavier metal. You’d be better off finding an AVS. I think the HolleyDemon carb is their take on an AVS. Ok, I was partially wrong. Edelbrock was selling AFB’s but now sell what they call the AVS2. Holley sells an updated version of the AVS. Tossed with a Thermoquad. Both carbs would be worth looking into for a street or stret strip engine. Of course if you found an original carb of either type, whet I sad holds true. Have fun!

Best video walk through on KZfaq. Great info for an old dog like myself who’s looking for new tricks. Excellent Job Tony. Thanks

Damn. I love this real world advice. Seriously. I look really good on paper. My Dad taught me about the real world. This is incredibly important advice for my Sons in the future. Thank you for showing how analog devices can equal or better modern digital fuel metering devices. It’s not as clean or efficient. But it will run when electronics won’t. Under very harsh conditions. I think my Boys would be surprised how great carburetors can be. My youngest has learned a lot with my blown ‘73 ‘Vette small block. It’s not the the future, I know. But learning first principles is knowledge that is irreplaceable. I learned about IC engines watching and helping my Dad restore 1900-1910 stationary gasoline engines. We dug two of them out of dirt and dung in Omaha NE and outside of Medford OR when I was in Jr/Sr High. His “Pride and Joy” was a horizontal engine, Fairbanks Morse, that used breaking points for the spark ignition inside the cylinder using a horseshoe magneto. Usually, I was the “starter”. Holding the intake valve open by my left hand to get it up to speed with Right arm cranking was a finesse maneuver. A person cranking will quickly learn what flooded sounds and feels like. The same with lack of gas/lean. It really brings the point home if you pay attention to how the engine feels and sounds while cranking. Thanks for your videos. I pass them along to my Sons and they soak up your knowledge. Maybe the world will go all electric. But...I don’t think so. The world’s milage may vary.

Thank you! That was a good breakdown.

Excellent video. The needles and jets are so much like the way a motorcycle carb works. very understandable to me.

Awesome information on these carbs I haven't found anywhere else. No one explains the metering rods this way.

Oh my Lord brother thank you for this video!! Absolutely gold. Litterly gold. With all the fuel injection out there not many old time hot rod guys talking about these anymore

Wow! And that's even after you threw it around everywhere.

Oh sweet cool I have to figure out how I’m gonna get mine set it up for my Buick 350 so I appreciate this video

Someone could have explained this a millions times to me and i still wouldnt have understood fully, but tony you sir are a genius.

I totally agree with what's said. Some of the best running street strip cars I've seen have had Edelbrock carbs. Crisp throttle response, still run good even cold, with great drivability especially dialed in. People say the same things about the Quadrajet calling them quadrajunk. I've seen old timers back in the day having awesome running street machines running 12 and 11sec quarter mile times(in the 1990s) and if you dial both the Edelbrock and Quadrajet carbs in right you can make GOOD power and have EFI like throttle response, performance, and good drivability!! Your right, it's not the design but the people who won't crack open a book to better understand how those carbs work!

Thanks TONY very well explained!

I used to run one of those on a hemi 265

Man, I just learned a lot about that design. I knew the secondary thing happened with them as I had one that did it, but never knew why. Thanks so much. These are my favorite kind of videos you do!

Absolutely the BEST explanation on these carbs I have seen yet. GREAT VIDEO, thank you and if you want to explain more on these carbs please do.

I love my Summit 600CFM carb for my 73 Mustang 302, and feel like I have it pretty well rounded out now. But for that thing, I had to buy every tuning jet, discharge restriction and secondary spring on Summit to optimize it from factory calibration, with an oxygen sensor no less. My used, $40 Edelbrock I stuck on my $400 84 F150 302? Never a flat spot or economy issue every day of the year after a couple minor adjustments. I may love the cheapo Edelbrock more.

I had a hard time finding the EXACT accelerator pump for my Carter AFB. After 3 different rebuild kits and the standard Edelbrock parts, I could not find the correct pump and therefor get my Carter AFB to work properly. That's why I went to Holley. So many people are afraid of Holley and how complicated they are. For me, I find them actually easier to adjust and tune.

I know this is an older video but you did an OUTSTANDING job explaining how this worked. I'm using the information you provided now. Thank you!

Thanks for your opinion on these carbs, used to run Carters back in the 70's on many of my engines for the street and the avs was super! Need a change on my 87 460 ford stake body work truck from the original Holley factory carb. Do not drive this truck every day and now experiencing leaks on the Holley on the bottom half of the carb. The thing I always liked about the Carters was that the carbs are only 2 piece , top and bottom, and less prone to any leaks. I now plan to replace the Holley with the Edelbrock carb . Thanks for a great video!!

Awesome Uncle Tony《☆》I need to get one of those tuning kits🤓☻🤠🚥🚥🚥🍃🍂🍁🌲

Thermoquad is still my choice for best all-around carburetor.

got a 1406 on my old 66 429 caddilac no complaints! thank's Tony for the simple explanation, now i will attempt to find the right jetting for cruising,(not scared now)

Tony thanks for sharing your experience, now I can play with this type of carb and tune it properly.

I actually thought my carb was leaking gas out overnight, did not it was just evaporating.

1:01 "The ultimate sweetness". No, that would be the Thermoquad. :)

Awesome info 👍 I just bought a 1982 Corvette stingray the previous owner before me had the engine rebuilt, took out the crossfire injection system and put a regular intake with this exact carb on it. I am not familiar with this set up because I'm used to fuel injection and I rely on my obd2 software to make any adjustments 😅. Just by hearing how you explain to tune it and make adjustments I can tell you had a professional shop. 👍 It's like my trade as well, I'm an HVAC technician I learned from "old school" techs they showed me tips and tricks and explain things differently then my instructor did in school! He mostly used digital gauges and electronic equipment. The techs I learned from used all old school analog gauges and regular temp probes they did tell me the new style is good but almost all new techs don't know how to read analog gauges 😅 Now I pass the knowledge to my younger brother and together we own our own business. Thanks Tony!

Thank you Tony. I am a carburetor guy too, although rusty. Just got a car with an edelbrock on it. Don't know anything about it yet but your video makes me want to get into it.

Always good to hear about tips for streetability, too, in an Internet often going for max dyno numbers, etc. :)

I always liked my edelbrock carbs, biggest problem I've had with them is worn out throttle shafts. The holleys, in my experience, always seemed to last longer.

Tony, I'm glad to hear I'm not the only one who has the issue with the float bowls drying out. The same thing happens on my grandfathers old ford we're fixing up.

Great video I never new that about watching those plungers while the engine is running. Another thing about afb’s is you don’t have to worry about backfire destroying the powervalve.