Twin Quad Carburetor Blast - 451 Stroker Dyno Tested 

Thanks for understanding that we have moved our Monday drop time to 5PM eastern. We hope this makes it easier for our viewers in western time zones to see the show fresh, while not disappointing too many of our morning regulars. -NG-

I love the no nonsense, no bs, no "IM THE EXPERT". Its The true sharing of knowledge and experience that makes Nick uniquie. Thanks Nick!!

About 30 yrs ago, my cousin dropped one of those setups on a 383 he had in a Dart. I watched him run it up and down the Alley, of all places, as he was complaining it wasn't using all 8 throats. I shook my my head, and discovered that one of the carbs had the Idle Mixture screws completely shut, and the linkage between the carbs was way out. Eventually he just used a Single 4bbl and was much happier

I was on a chat line the other day. A guy on there wanted to swap his modified Edelbrock carb for a stock Edelbrock carb. He said the guy he got his carb from had modified it and it was running rich. I told him about the Edelbrock kit you can buy at the local Advance Auto Parts, Summit Racing or Jegs. Who knows if he believes me, I told him they are easy carbs to change the metering on. Don't have to drain the gas to change the metering rods or springs. I have had some luck right out of the box also. I put an Edelbrock Performer and Edelbrock 650 Carb with an electric choke on a Dodge Truck with a 318. He said the cold start stumble stopped and it idled so well that with the stock muffler he sometimes tried to start the truck when the engine was already running. He was happy that on cold days he could just hop into the truck, start it up and go with out sitting for a couple of minutes until it warmed up.

I remember from my days bracket racing that the 'B' Mopar engines had a distinctive sound that I always liked. The drag strip is the final dyno test,lol.

Yes! 451 stroker baby! I'm putting my 451 together right now. Trickflows 240's, Trickflow Single plane intake and trick flow .600 hyd roller cam.

Its Nick Kanavaros from Vancouver B.C. . Awesome episode to see the differences between the 2 set ups. Thanks so much for doing all that for us and for the owner Julien . Just awesome

“NICK” you tickle me when you smiled on that last pull, I was smiling right with you Bro, I’m 65 and really like watching and listening to you when yer getting excited. U R The Man 👍😎💪

Nick, I really like this engine the best. Out of all of the engines you have tested. The single manifolds modern power vs the ol school duel four barrel cast iron intake. The power it makes is awesome !!! Those guys really knew how to build an engine back then. !!!

Nick's Garage is on a brand new schedule and this 451 Stroker is one hell of a tool there's nothing like the sound of a big V8 at full spool Nick has changed the carbs Undercover killer at large Keeping that old school look with performance that is off the hook Nick's Garage every Monday is alright in my book

I always had SBC or BBC in my cars, but seeing how easy changing an intake is on a Mopar big block makes me wish I could go back in time and gone to the DARK (Mopar) side. I use to dread putting distributor back in if I was alone, so much easier with two people. But Mopar's look so much easier to work on, and similar power too. Another great teaching video from Nick!!!

Chrysler engineers of that era understood manifolds. The long cross rams with the carbs on the fender liners were done for torque not so much horsepower. Was designed to give heavy cars like Chrysler 300 letter cars better acceleration. When they started putting the big block in the lighter Dodge and Plymouth models for drag racing with the Max wedge in 62 they went to the short ram for better top end performance.

Back in the day I had a 4-speed 70 Hemi Cuda and I ran two Carter 750 cfm competition series carbs most of the time wile on the street. The motor had Cylinder Head Service modified heads, roller cam, and12.5 compression. It was an old SS/D motor that was run in a SS car out of Ohio. I used a stock intake for the street that had been extrude-a-honed and the car ran strong with no breakage besides valve springs from time to time. Love the videos Nick keep it up.

That intake manifold was first used on the 1958 350 cu. in. Fury. It’s funny that the 350 turned into the 383, and eventually the 400, and not a BowTie to be seen.

I was only about 14 in 69 but I got to ride in some 426 hemi roadrunners with two fours and I owned my own 69 roadrunner 383 Magnum my friend had a 68 Dodge charger RT 440 Magnum I worked on it for him all the time it would run 175 miles an hour those were the good old days!

Sweet! There is an opportunity to team up with an ASMR channel and put out a 10-15 min audio track of these beasts! Take it from cold start, idle to full power and back. Love the work, Nick and crew!!!

Best car show on the internet!

I had one of those cast iron dual 4 barrel 383 intakes in high school. Surprisingly, it is a single plane intake. Mopar originally sold them with the 2 carbs and air filters. I had it on a 383 in a 1964 black Polara 500 with red and white interior.

Morning noon or night the time is always right for a show from Nick's garage

A lot of people don’t realize is that Chrysler was a engineering powerhouse. They did a lot of engineering during WW2 for tanks and bomber aircraft. It’s my opinion they took all that knowledge learned, looked around and put to good use in producing performance engines and cars in the 50’s and 60’s.

I learned to rebuilt and tune Carter carbs at 8 years old , it was my third job pops taught me first was gapping plugs and points .

Thank you Nick much appreciated, she even cooked me a nice breakie of bacon & eggs with all the trimmings. That was rather impressive Nick and I'm sure Julian will be happy with those results thus far. Great tunes George. Stay safe and well all.

Finally, I thought I had missed another video, but here it is. I love the dual quad look, very old school. from the 60's. I have been waiting to see what the HP loss will be. Nick's Garage in the afternoon, different, but still the highlight of my day. Here we go!!!!.

Any time is a great time to watch Nick do his magic! Bill from Linglestown, Pennsylvania

As usual i love the Dyno room, it just goes to show how under rated these little B engines are

Nick , I'm with you on having everything you need to keep working when you want without having to stop and runout for a small carb part . When you bought out all the needle and jet boxes , I let out a laugh and said to myself Nick is always a step ahead and on it . ....Great work Nick . As I said before and keep saying , your a Master Master Mechanic!!!!! Yall be good and take care Nick.

Thank you for another great program! You have teach me a lot and I am 72!

Late posting. No problem, I'm loving it the more! Thank you George and Nick and crew! Best video show on youtube hands down

Wow ! That impressive for a Low-deck Big Block with that old style dual quad manifold/carbs. -Cool !

Nick I have seen your videos before but i had a hard time sitting still and listening to your dialogue. But as I watched more I became accustomed to your style of dialogue. And I also saw how much you know and share. Now I watch this Mopar video and just really enjoyed it. I never owned or wanted a Mopar or Ford. I had a 47 Chevy inline 6 and stuffed a nice 57Olds 371 into it. After that is was all Chevy. 327, 396, 350, 427, 454, LS1, LS3, Gen5 LT1. I love your dyno room. your setup for information and the results. Great video, Looking down the carb throat is so informative. to see the fuel jet. Well Done Nick.

Just now had time to watch. Every dyno video drives home two facts. 1. Nick is a treasure trove of knowledge for engine building and tuning. 2. The V8 cars available NOW are no..joke. Old stuff is stout and what I grew up on, but today we are..spoiled with 500, 600 and with Dodge now 800 crank HP with the Jailbreak '22 models. OEM eith a..warranty. what a..world. Kudos to you Nick for keeping the flame burning bright for the old school iron👍.

Another satisfying Dyno video Nick and George! That Carter "Strip Kit" takes me back. I had a 1978 Dodge Magnum that I swapped a smog 400 for a fresh 440 that had lots of goodies in it. Atop the stock HP intake manifold was a Carter Thermoquad. I used the strip kit to change jets and metering rods til I got the perfect seat of the pants launch from the 8-3/4 posi rear end. No Dyno back then. It ran well and the Thermoquad had the phenolic base that kept the fuel cooler on hot days. No thermal lock ups.

Dyno never lies. I remember some friends who boasted about ridiculous horsepower from their engines. I just kept it in. Laughing inside

I've always appreciated this chance and your wisdom & personality. It's like a package deal to view videos here.

Finally!!!🎉🎊🎉🎊🎉 A 400 stroked to 451. I have 1974 400 4bbl and I'm wanting to gather any info on this motor and the variants from it. I'd sure to see a refresh on a stock 400 sometime. Great job Nick!!!💯😎

Isky has brutal cams for that induction set up😊 I gave my 2four set up to Mr John Snyder for his charger .

That under hood inline dual 4 setup looks AMAZING

Hey Nick and George & Krew, very much enjoyed watching Nick work the 451 through the paces. I fully understand the 4 barrel and modern intake bring more horsepower, but I agree with the owner on the 2 4 barrel old school setup and look . Nick you did a beautiful job with making that setup work and look so good under the hood . That's a beautiful engine setup and car !!!!!

Hi Nick that's very impressive for a 1959 intake with dual quads.. Hey by the way I can't wait to wear my long sleeve shirt like what your wearing there and SPREAD THE WORD OF NICKS GARAGE PROUDLY... Have a great 👍 rest to the week Nick FROM THE BANDIT ....

I used the same intake in a mild "Christine clone" build up based on a 400 block. Nothing special there, 440 source heads homeported, comp 21-227-4 cam with factory rockers and 1 3/4" primary hedman headers with 3" exhaust and mufflers. The intake was modified some, it was opened under the carbs cutting the four hole portion out and curved to the ports, making the plenum a bit higher. And then tapered four hole 1/2" plywood spacers were used under the carbs. It surprised me, making the best power of similar build ups I have done with that cam and with different intake manifolds, RPM, Torker2 etc. Close to 540 hp.

This old boy forgot more than most think they know. His videos are great.

Oh btw that Challenger is gonna be one wicked ride!

Even for a 30hp loss id run the dual 4s. It looks original not to mention the cool factor. Thanks Nick this is a really cool and very informative video.

I remember when the Edelbrock Performer series came out. Had a massive impact on the street scene. I bought one myself in the 90's for a small block Chevy.

Really really appreciate the 5pm eastern release time! Cheers

Nick lean it out just a bit and play with the timing, and twist it to 6400. It won’t hurt it especially with the stroker kit. My stock 383 bottom end went to 6,500 a lot.

the hour class we cant miss. only at the school of nicks garage. thanks nick and camera man. love the music as well,,

I was wondering were is my Monday afternoon Nick's Garage at. Usually I see the video drop at around 3 in the afternoon here in S A. I'll just have to make adjustment to my memory about the new time. As always awesome show Nick.

Haven't seen Vacilly in a while what did you do with him he should be building things with you . I like the simplicity of changing the jet's on the carters than the holley. ANYONE KNOW IF VACILLY STARTED HIS OOWN CHANNEL IF SO iIWOULD FOLLOW HIM ALSO IF NiCK WOULD PASS THIS ALONG TO HIM.

Giasou Nikola, Ma Mopar knew what she was doing when she fitted a twin carb low rise cast iron manifold on the 383 back in the late 50's. Those 383 just keep giving more & more. Again another 383 with more than 1 hp per cubic inch. Great episode Your number 1 Fan in Australia Louis Kats from Melbourne Australia ☺ 👍 ❤

I appreciate the fact Nick puts the effort into squeezing all out of the dual quad he can even though HE KNOWS that single carb dominates

HAPPY BIRTHDAY, BLINKIE!!! You're catching up to me!

The editing and production just gets better and better, George. Nice work. And the graphics at 19:55 made me lol!

Bon Jour/ Good day. This takes me back to my childhood when everybody was buying those "Shiny bits", and the Chryco kids got them stock from the factory.

From a looks stand point, dosen't get much better. Thanks again for another great video. Dosen't get any better than Nick and crew in the Dyno room.

This particular intake Nick was designed to compensate for the fact that at the time there were no large CFM 4bbl carbs yet. The only easy way to get around the problem back then was to run 2x 4bbs. IIRC this intake was set up to run 2x WCFBs. The adapter plates on the intake point to that. Tuning dual quads for the street with a dual plane dual quad intake is a bit of a dark art these days but they can be made to work. Really what I feel you need to get them to work is a single plane dual quad intake of modern design. A pair of those Edelbrock Thunder carbs are actually better than true Carter AVS carbs were and certainly more adaptable than the Carter/Edelbrock AFB for dual quad. Over a single 4bbl the effort to get the dual quad to similar power is high and the rewards probably not worth the effort for most. On a 440 I got excellent results from a dual quad Edelbrock CH-28 intake with AFBs but it took a lot of mucking around and it only made maybe 8hp more than an 850DP, a well modded Thermoquad on two single quad intakes ie a Torker II intake and a M1 single plane. The TQ on the Torker was fantastic combo. It was just so simple and easy with little effort to get power from the TQ but I digress. Back to my dual quad adventure, to me it was well worth the effort but ideally as mentioned, you need a single plane dual quad like you can now buy for a Gen 2 Hemi from Edelbrock but none is made for the Wedge. I did get a bit more power with a dual quad dual plane intake with 2x 500 CFM Edelbrock AFBs but I wouldn't recommend it unless you like a challenge - which I do. I really learnt the limitations of the AFB style for dual quad and at the time wanted something like a hybrid of a TQ and and AVS. The Edelbrock Thunder wasn't born yet at that time and it is indeed the hybrid design you need for dual quad tuning ease. I found for my setup opening the primaries together worked really well but I tuned it for that after much trial and error with the staged arrangement. Fuel economy was still acceptable when it was all properly set up that way. Re low deck dual quad intakes, unfortunately except for the rare Edelbrock cross ram there isn't much in the performance stakes for the low deck dual quad aficionado these days. Part of the dual quad tuning is recognizing Venturi vacuum at WOT is halved over 8 barrels vs 4. There are two philosophies and both seem to work. One way is 2x small carbs because it pulls a stronger vac signal thereby compensating for the Venturi vacuum drop over a single 4bbl, the other is 2x large carbs with big jets to compensate for the reduced Venturi vacuum signal over a single 4bbl.

Great test . I agree, I would go with the high rise and the 750 Holley. It even looks better. Back in the 1970s that was the setup you would have,if you could afford it.

Had an original offy dual 4 barrel spread bore intake for a b engine from the 70's that was never on an engine. Put 2 thermoquads on it but never did get to put it on an engine. Some guy gave me a offer o couldn't refuse for it. Still kicking myself

It might sound strange to some but sometimes it's about the "Coolness" factor instead of getting every last HP out of an engine. You have to admit that dual quad set up sitting in the car looks "Cool"!!

Nick, I love the show! this show especially! I remember those old manifolds when I was a kid, that was "Christine's" intake and they weren't portmatched very well. Compared to just a few years later. Used a 9inch aubor to clean out the rough stuff from the intake to get 30 or 40 horsepower just by port matching them correctly

Impressive. Looks good too. I am sure the work you did to the water and oil pump make a difference too. Have a great week, thanks for the video, team .

You can tell that Nick is in his happy place.

My '70 Dodge Dart Swinger drag car is powered by 650 hp 451 stroker. The carb is a single 1,000 cfm Holly Dominator. Interesting video, as always, Nick!!!

Hi Nick, hello from Vancouver BC, I was a subscriber before but when I changed iphones I lost channels. Anyway I back, and enjoy your channel, keep up the great work.

I've been converted. I've seen the light of Mopar. Because of uncle Nick. Thanks Nick

Goooood EVENING!!!! Ha, there’s a switch for ya!!!! 😀 Great video, Nick and George!!!! It is interesting that the dual quad manifold didn’t lose THAT much performance: I was thinking it probably has slightly smaller passages, therefore mixture velocity is a little higher, and having two carbs sorta takes advantage of that. Anyway, it’s a little different with the start time, but, as I said before, that’s the ONLY difference, cuz the content is fantastic as always!!!!! Keep up the excellence, guys!!!!

Good day Nick and Crew! Hope you all had a wonderful first day of spring!

There's something so cool about dual quads... 😎 that's what I run on my 383 corvette.... and it works great and looks kick ass too.... BTW when I grow up I wanna be like Nick... and have my very own dyno. 👍

I want to give George a HUGE shout out for his amazing Audio and visuals! Nick has the best sounding and top down dyno runs I have ever seen and heard. Great job guys! This coming from a diehard GM guy. What a blast. Cheers

I believe you said the 2x4 bbl manifold was a single plane, and it is low profile. My understanding was single plane manifolds are best for hi-rpm performance as opposed to the dual plane which is more for street use. The Performer RPM manifold is light years ahead in design so it is better all around. The Desoto Adventurer cars were the top line Desotos and they always had hi-po engines and the 1959 Adventurer had a 350hp 383 with the 2x4 bbl set up. I have photos.

Great vidio . The rods are a bit small in back carb 🤔 great to "hear" them run again 🏁 Thank You Mr Nick🥂🏁

Σας ευχαριστώ Νικ, που διδάξατε σε ένα παλιό ελληνικό νέο κόλπα.Η μητέρα μου αρνήθηκε ότι ο παππούς μου Νίκολας Ρόππας επιθυμεί να μας διδάξει τα παιδιά τη γλώσσα, οπότε ελπίζω να με συγχωρήσετε που χρησιμοποιώ μεταφραστή. Translated: Thank You Nick, For teaching an old Greek new tricks. My mother refused my grandfather Nicholas Roppas wishes to teach us kids the language,So I hope you will forgive me for using a translator.

Nicks knowledge no’s no bounds. Super impressive and thank you for your insight

What a great example of a tamed 451 stroker! That 451 really forces some pump through that intake ! 500hp and 534 tq! Without even trying. Makes a great daily driver with confused looks on faces with the hood up. I just think it looks really cool with the stock dual quad setup and i think hey thats a 420 hp 450tq 383 when i look at it, then prepare to be surprised at its performance, it'll always have an edge with those 451 cubes going. Great strong artistic statement this is.

I sure would love to see Nick work his magic on the old F-134 4 cyl in my old Jeep.

Love it, glad you presented this! Miss the sound of those MOPARS.

Over here in south Africa we mostly doing 4 and 6 cylinders but daam who don't love v8 especially old school done right... Nice Sir Nick and the crew on other well video

The top camera angle watching those carbs pull fuel is just beautiful, that motor definitely liked the longer intake runners. That was a lot of power to give up from the dual quads.

Nice to watch the jetting changes and the results from it. 👍

That big block should get right with the program!

This video is fantastic it reminds me of the 410 small black Chevy's we built with dual carbs Yet we told everybody they were 283, we even had the old valve covers and a small balancer since we internally balanced A lot of the engines it was great stuff having people scratched their heads wondering how those little engines ran so well LMAO

I wonder if a modern dual quad set up make any difference. Very respectful power even after the loss!

I like to see two 1 inch open spacers on the dual carb if they would work.

You mentioned cross ram, I'd like to see what the old 60's era Chrysler cross ram would do as a comparison. Those looked so awesome.

So about the same loss as going from headers to exhaust manifolds. Good video as usual Nick.

Customer's always right that definitely has an aw Factor opening the hood

I'm impressed that this engine makes that much power

I did guess to myself 30 horse loss, just lucky. But I'm with the owner on the dual quad set up. Great eye candy at a show.😉👍👍👍👍

I was talking to my friend about 2 4s on a BBC he said exactly what you said. Very informative video

One thing Nick might have done with the 2x4 intake was to put some 2-inch spacers under the carbs to kind of equalize the height with the Edelbrock manifold.

535 out of a B block - mouthwatering! This stroker is definitely on my bucket build list. Any chance we can get the cam specs?

Very impressive Nick' very well done.

Nick you can make big HP gains with the Holley by changing discharge nozzles, metering blocks and removing the air horn but I’m sure you know all of this … Great video as always

Another great job from Nick.

If you've never read Walter P. Chrysler's autobiography you're missing out on a fantastic journey from the legend himself.

I love all your videos Nick. I wish I still had my direct connection parts and wish book. Thank you for the videos.

Thanks for a great dyno run love them Mopars

Another awesome, educational video Nick !! BTW, just like Rush, you ROCK!!! Take care & God Bless!!

You might think I am crazy, but we used to just take off the numbers on the rods with fine emery. Shade tree in Alabama. 1970-71 It worked at the race track.

Happy Birthday BLINKIE!!!.