I’d like to see an Edelbrock vs Holley vs Demon vs whatever else test on a 425 horsepower motor

You guys should check out the Engine Masters episode where they were looking for the Best Cheap Carburetor. The used the Holley 750xp as the base line and tested the Street Demon, the Summit, and the Edelbrock. The Summit won (BTW its made by Holley) and tied the Holley XP in both HP and Torque. For only $380. It was also the cheapest carb.

With so many people barely hanging on these days being able to squeeze a dollar and still get good performance just makes sense. Sure...low bucker at heart here love the junk yard jewels of the past and want to see it go forward. Thanks for your work.

I love that you always give every item you test a fair test. You proved time and time again that low buck parts are just as good as high dollar parts.

I love my 850 brawler. The price on those ultra xp Holley now are like 1100 bucks. Insane !!

I'm guessing the choke horn on the Brawler accounted for at least a couple of HP, and probably contributed to the slightly richer A/F you saw with it.

Great test, I believe it pretty easily demonstrates how restrictive the Choke Horn is. Way back in the day I used to make a few dollars pocket money machining the choke horns of Holley Carbs. I could get used Holley 500's {Truck Engine} cheaper than 350's and I would machine off the choke horns and jet and PV them for 6 cylinders. Made enough money to buy my first big tool cabinet back when they used to be stupid expensive in the 80's. Wasn't a bad lurk until a local speed shop realized how profitable it could be and started importing used carbs from the US.

I've built several street rod engines for guys on a budget. They freely cough up the dough on a good short block, then when it's time for heads they tighten up a little. By the time you get to a manifold and carb, they're already all-in. This Brawler carb looks great. Double pumper or vacuum secondaries, adjustable air bleeds, etc.

EXCELLENT! These are the types of comparisons I like to see. I'd love to see how the Summit reincarnation of the Holley 4010/4011 carbs compares to the Brawler... Sadly, when Holley was producing them, they weren't very popular, but I've seen several 4010 750s that ate the 3310's lunch pretty handily.

If you guys have the carbs I think we would all love to see a 6, 7, or 8 carb comparison along with what it took to make each carb work well. That would be VERY interesting to watch.

NEED to find a way to do a fair comparison of Holley, Edelbrock and Qjet on a good running ~350-400 inch engine.

As I’m sitting here getting caught up on all the sbc videos you drop this carb video. Perfect timing

Another option for a lower cost carburetor is order a "Blem" or "Remanufactured" carb from Holley's website. I got a 750HP Series double pumper for $390. Good deal considering new its either $500 or $600. Holley specifies on the website a vast majority of the reman. carbs are there because people get confused with and eventually give up on tuning them, or send them back because they don't run well out of the box.

In the end it's how a carb drives. I've had several different carbs over the years and u can nearly tell straight away from how the engine starts that your onto something good and will only need small changes. Good throttle response good afr.

I feel like the 7 HP difference was simply due to the choke horn and plate, mill that off with a clean radius and probably be close to the same

Great video. One thing not mentioned is that Brawler has ported vacuum for the distributor. This will improve gas mileage for the street. I use a 750 double pumper on my 383 small block and I get surprisingly good MPG using it.

You didnt mention this, but you can also buy just the HP main bodies and install them in your double pumper for pretty much the same performance and the XP

I had SBC roller cam 327. Brand new Holley HP 750 right out of the box absolutely did NOT run good on my 327. Excessively lean building 50 degrees temperature within 7 second run. Had to increase jet sizes buy a bout 10 numbers to get temperature under control and optimal Eighth Mile ET. I learned a hard lesson. Never expect carburetor to perform optimally right out of the box

Hey Richard, I would love to see a video on tuning a Holley HP Or terminator EFI system. I know it might be tedious but a few part series on getting it to work would be fantastic. I plan on using the terminator x plus on my BBC L21 gen vi 496 with 4L80E. Thanks for the consideration Sir, enjoy your stuff. Been reading your work for sometime, thanks!

I like the high buck vs low buck test. I am a low buck guy. My street cars are required to do lots of drive to the track, foot brake, and drive home duty, regardless of whats under the hood. The $$$ difference will allow for better exhaust, or ignition, or intake, or heads, converter ect. For 100% track car the ultra XP is the smart choice. I would like to see testing on the new Edelbrock carb too. You should refer the Brawler carb from here on as the ORANGE JUICE JONES CARB.

I know this is two years old and as such things have advanced a bit. For round numbers, the XP is $1k and brawler is $600 (think after tax, lol) and in the sniper is $1600 for the master kit. For those who might argue a bit, the carbs don't include fuel pump, lines, filters, etc. so the basic kit with out the install lines and pump is $1200. For a higher out put SBC fuel pump you looking at a couple hundred for a good one either electric or manual. I would like to see the comparison in power. The hard part IMO would be the Sniper needing to "learn" for a bit for the test to be more valid rather then out of the box.

Testing cheap vs expensive carburetors, I'd much rather have seen a cheaper carb than the Brawler. Summit, QuickFuel, Edelbrock, Jet, and FST all have carbs from $300-$350 that most people concerned with budget would look at first before dropping the extra $100-$150 for the Holley XP. Just got a QuickFuel Slayer and converted it over to a metering block on the secondaries

intended use really comes into play here. like you said the brawler is the better choice for a street thumper that's driven regular but for a dedicated race car the other one has some advantage. in a typical street car you really won't feel the 7 hp difference but on a track car even 1 hp could make a difference between a win and 2nd place

Great test. Appreciate it we're always trying to save a dime.

I just used the good ole 750 double pumper on my stroker, then borrowed it for my 454,

I just replaced my 3310 with a Brawler. I have owned three different 3310. The Brawler starts better. It has better throttle response. Slightly better performance out of the box. Bought a remanufactured and saved $100. So far great carburetor.

Thanks Richard - I’m looking to replace the carb on my 69 Z - answered a lot of questions I had!

When running a street car with a bit more cam it's nice to have a choke. You see it all the time on youtube hipo motor cars cold start without chokes sitting there surging at idle. What is causing that is the carb is not rich enough for a cold motor so as the idle drops down the power valve opens up and saves the motor from dying. Of course once the engine is warm enough the surging quits. A good choke setting solves that problem. A tip for really hot cammed motors, a dash pod. A dash pod will prevent the throttle from slamming shut creating a momentary over enrichment that'll stall the engine. Dash pod saves fuel. Remember back when carbs ruled? You could count the shifts by the puffs of black smoke. Dash pods prevent that.

Love the test Richard.. I just ran the ultra Xp 950 on a 700hp 496 BBC...the Fuel curve and brake specifics were perfect...right out of the box...I was supprised because the ultra XP has a power valve on the secondary side as well as the primary....but it works really well..

That's really interesting I would love to see the differences between more carbs like an Edelbrock a Q jet maybe a thermo quad dominator or a summit carb on the same motor.

I suspect some of that power difference is just from the airflow disturbance the choke butterfly causes. If you lived in a cold climate likely that would be a must have for any wintertime use.

Making a bunch of sense!! Have you ever tested a predator carb ? I'll send you one to try out.

I like how things have advanced far enough the 400hp is a "mild" build now days. Just 20 years ago a 400HP motor was NOT mild and many would say that was a built motor. Granted heads and valve train was limited money wise and aluminum heads where just starting to come out but had huge issues with head gaskets till they got the alloy combination right. Now 350-400 horse is factory..lol

I had a buddy with a 66 gto with 3-2 barrel s . When he switched out to a single 750 Holley the car went 4/10 faster in the quarter. Had a Taller alum intake of some type which Maybe made the big dif . I remember him having trouble finding a air cleaner to fit under the hood .

Love the low buck comparisons! 10hp is only 1/10 second!! I'm a bang for the buck guy! What happened to the day when days when you looked at the time slip to see if what you did made a tenth of a second difference!!

Richard. Can we see an annular vs downleg vs straight leg booster shootout ? Maybe on a few different types of builds, stock vs warm vs race ? That would be EPIC !! Thanks for your efforts bro, I always learn something from your videos.

another great test, thanks. I've put an out of the box 750 Holley hp dp ($700)on my race style sbc (.600" lift roller, 12+to 1 comp., ported heads), set the idle, been runnin' it on the street for 3 years a happy camper ( engine came with a 850 dp that was set-up for WOT, wasn't very responsive under 6000rpms). Love my Holley 750

love the low buck vs. high buck stuff. keep it comin

Yup, ive had a Holley 850 HP sitting on my bench for almost 6 yrs...they were only 760$ back then.. 950 now...dayyaamm When i lived in Utah...3600 feet above sea level, we always cracked the new carbs open and dropped 2 jet sizes, if not, most always too fat

the brauler is the best bang for the buck it has so much to offer removeble air bleeds jets and still streetable a good carb to start with

That was a cool comparison test. With surprise results. Awesome.

I never liked the shiny coated holleys, I've seen it peel off inside the floatbowls... but that ultra xp is badass.

I would too, but not a choice for me. Not cheapo but can't afford a 11-1500 dollar carb. Thank you for this video.

If you ever do a carb shoot out again with the Edelbrock, PLEASE make sure you do their latest and greatest the AVS2. Has an adjustable air flap for the secondaries and annular boosters. Seems to make WAY more power than the AFB I used to have on my built SBC

This is my favorite type of test. Budget vs big bucks.

@RichardHoldener Could do a video of a swap meet Holly carb buy and build on the cheap. Go to garage sales swap meets etc but 2 or 3 junky carbs and build a decent one. That would be cool for us very low budget guys.thanks.

Yes I wanna see a complete low budget 454 build vs a high budget vs junkyard. And crunch the hp to cost values.

If you didn't say so I wouldn't believe it. But your test will prove it for me.

Got a 650 brawler on my nitrous fed 4.3 V6! Love the look, the price, and it works perfect 👌

Put 2 brawlers on. For that price. Great information.

Like the other commenters im curious about the summit racing carbs. Ive seen them on more budget builds than i can count on both hands and really want to know how they compare to the ultra xp and the brawler. Both out of the box and after steve brule(not sure how his name is spelled) does his magic. I also wonder how the chaeper* carbs handle low vac situations. Would be a great video. Cheaper*

Love the Ford 351 tests!

I'd love to see an intake shoot out for the 351w EFI. Edelbrock truck manifold's vs. trickflow vs. stock :)

For the price of a Brawler with a choke horn, you can get an FST with no choke. 750cfm $458.00. They are going to take a big chunk of carb sales if they can get through their growing pains.

How about a "factory OEM carb vs aftermarket carb" shootout. Break out your Quadrajets, Thermoquads, Carters, Motorcrafts, etc. and see if they can be made to run as good as the aftermarket stuff.

Wouldn't say low buck, but for today I guess. I still got my 750DP Holley I paid 400 bucks for years ago. Good Sunday to ya.

Do a cheap carb shoot out, include the summit carbs

I thought we learned from the 455 test that a 750 isn't big enough.... Hahaha!

I bought a brawler for my 94 Chevy K1500 and it’s been a nightmare from day one. I’m switching to Fi-Tech for drivability and because it’s a 4X4. I will however be putting a carburetor on my 468 CI big block Chevy.

Good comparison ! Who says we can't go fast , for not much money 💸

Awesome test. This kind of comparison is extremely helpful. Thanks!

Id like to see a double pumper against the vacuum secondary street avenger of the same size.

I have no idea how you don't have more followers than you do. Love your videos. I'm on your side with the music👍. Just watched a 6 month old comp cams video where you were wearing that shirt.

a test and a explanation of the difference between the many holley carbs, demon, xp, dominator, quick fuel, proform, original, hp,street, avenger

Love your videos, this daily video routine has been nice.

Air cleaner added for the street, probably end up even. Agree with others about choke horn.

No Predator? Or Ron's Flushing Toilet? I need something to go with my Rhoads lifters after I get buff from my Charles Atlas workout. Lol.

This guy is very smart but windy as hell but very sharp

I love the Brawler carburetors. You can get them in some cool colours.

Curious about the difference between the holley type carb and the carter I've always heard the holley makes more power (but at a cost in fuel consumption); be curious to see if a) that's true, b) if it is the transient change to full-throttle or if it show up under steady-state use like the dyno, and c) if there's a difference in the fuel droplet size between the two types.

Thank you for looking out for us blue collar bros.

My boy is looking for a new carburetor for his newly recammed ford 390. I think I'll show him this video!

Cut the choke horn off of the Brawler carb and I bet the numbers would be almost if not identical.

I wonder if the choke assembly would be responsible for the power difference? It does impede airflow after all.

I definitely appreciate the low buck help. I modified Holley carbs for years, and finally got a Brawler. I’m very impressed with it, and I know it has a lot of potential. Do you think you could do something with modifications to either Holleys or Brawlers? Like millling and radiusing the inlet. Thinning throttle shafts , then tuning for them?

I'm surprised there was even that much change on the engine dyno. I would like to see these carbs tested on a chassis dyno, where carb tuning features and proper jetting and air bleed sizing will make a difference.

I always want to see high-dollar stuff tested versus lowdoller stuff

I don't personally think that the main difference on an application such as this is between which one makes more power, I think they both will get the exact the once AFR are set to be the same. I think the one thing that wasn't touched on, is the fact that the XP can be had in an E85 rated materials that won't be destroyed by that fuel.

RICHARD, I’d like to see you find and test some toyota V8 stuff like the older 4.7 and the newer 5.7 harder to find but it’d be sweet to see them maxed out with boost! No one has done any scientific methodical testing for max power with the 4.7 on nos or with boost so I think it would be an awesome episode!!!! Also my brother has a sequoia with the 4.7 that he turbocharged and he’s only running about 8-9psi but he’s afraid to turn it up because of the rumors about the rods holding so much power but like I said no one has ever safely boosted this motor. People who have boosted the 4.7 motors have just ran them on pump gas and threw boost at it and probably detonated and blew it up and said “it can’t take power” so I’d like to see exactly how much safe power it can take on say e85 😁😃

When I was hot rodding back in the late 60s gasoline was about $0.26 a gallon for a Chevron Custom Supreme 105 Octane and a Holley Dual Pumper 650 carburetor was like $37 and taxes.

Thanks for doing an honest review ...

Take this a step further. Build and test old carbs like the Thermoquad, the Quadrajet, the AFB, the AVS, the WCFB, the 4GC, etc. compared to their contemporary counterparts. A lot of us still have and run old OEM carburetors because we have them and they are much cheaper than what you call "low buck" here. For example, my daily driver is a '68 C10 with a smog era (dished pistons, 76cc heads, 3896929 cam) 350. It has the typical low buck bolt-ons: long tube 5/8" headers, an old Edelbrock Performer dual-plane intake, an HEI distributor and a Thermoquad. The Thermoquad is an unusual but reliable choice when employed by someone who understands old OEM carburetors. For all of your dyno experience, it seems like you don't know as much as you'd like us to think about carburetors. My opinion stems from the fact that you made no effort to rebuild the Quadrajet for the 455. Further, you made no effort to obtain one from someone who is familiar with them. It makes sense that you're a Holley guy as Holley is the popular choice for dyno rooms and drag strips. It seems like with you it's about pumping out the videos as fast as possible. You call something low buck but have Westech resources at your fingertips. The things you test always seem to escalate into things truly low-buck people can't afford. I guess that's how it goes making a living off of KZfaq. It's a balancing act between pleasing guys who want to see the biggest numbers at all costs versus the guys who want to see what their real world low-buck junk builds really do on a dyno. See my comment on your last Buick 455 video. I'm the guy who put the '70 10:1 high mileage 455 in the '74 Buick Apollo. That engine got a new timing set and freeze plugs--that's it. That comment shows what "low-buck" is/was in the real world (I built that 32 years ago). Build and test your 455 that way and then proceed with all of your normal unrealistic biggest number stuff. I don't know if you have a Patreon page, but having one would make your path clear. You do what the money (Patreaon) tells you to do.

Loved quickfuel before Holley bought them.

Richard, you have a unique way of cutting through the endless stream of automotive embellishments and total bovine excrement so typical throughout the cyberspace universe. This comparison NEEDED to be done with a man of your credentials behind the wheel. My interest centers around the recent purchase of a Holley Track Warrior in the 850 cfm version with mechanical secondaries. Since my cabinet isn’t full of exotic induction components just waiting to enhance my performance quest, I had to select a carburetor based on its features and compatibility with my engine combination. Naturally price matters and buying direct from Holley back during their Christmas sale made it affordable at just over $500. It shares many of the features that the XP has including a nicely contoured air horn minus the choke tower, billet metering blocks and throttle plate, jet extensions, four corner idle adjustments, clear sight plugs, dual fuel inlets and the usual bells and whistles. Another attractive feature is how the out of the box calibration is right in line with the needs of my 351 Cleveland. It has old school Pro Stock high port iron heads superbly prepared by Endyn, Inc. A new old stock Reed solid roller cam and valve train. Manley forged dome pistons and an internally balanced rotating assembly all housed inside a 0.020” over, production four bolt main block. Would I like to have that sweet $1000 XP featured in your test ? Why hell yes, of course. But thanks to you and the real world dyno results, I no longer suffer from anxiety brought on by carb envy. Thank you sir, and keep on keeping it real !

More low buck vs high dollar would be very interesting

PO boys got to put the money where it counts. That $500 will get a lot of stuff!! Buy a lot of nitrous!!

You could prob compare ten 750 brawlers and get a slight range of HP difference because of lower machining tolerances. Ten Ultra XP should be tighter/closer to the same. Billet isn't always good, it depends on the machining. Race carbs sell but people want them to act/drive like a vac secondary carb and that is where custom tuning comes into play

The Holley flows more air than the Brawler with the choke horn, why did you not use the Brawler W/O the chock horn?

No surprise on price increase after free advertisement for them sadly.

Mechanical verses vacuum secondary

The HP Ultra is a turner "thinking mans" carb, lots of hidden easter eggs on this carb...

Wish you’d show the actual pulls then the graphs... men a very visual creatures love to see her work 🤣

I wasn't expecting more then 10-15hp and most of that loss was probably from the choke plate. but a little touch on the jetting and bleeds would have solved that. I bought a hp 650 one of the originals for my maverick more years ago then i want to remember and playing with jetting and bleeds was nice.

I'd love to see the SBF shoot out the GT40, Holley, and box plenum intake in a FI set up

Great info as usually Rich 💪🏾💪🏾💪🏻💪🏻

Richard if you can get your hands on one of Edelbrocks new race 4150 style carb it be nice to see what there capable of. The way Edelbrock designed it looks to be designed to complete with Holley's Race Demon. I'm starting to see engine builders put them on there big CI nitrous engines designed mostly for these racers that race in street class that has to do cruise.

seems like the brawler checks a ton of boxes feature wise especially if they both use the same booster type.

Nice ad for Denso and Champion plugs there Richard...

*Predator* let's bring this back Richard!!!

I would like to see a battle of low-buck carburetors that are out on the market