Old School Tuning: Choosing And Changing Carburetor Jets

Published 2021-09-14
Getting the Holley 650 Double Pumper on our Slant Six dialed in to find that optimal air/fuel ratio and distribution pattern includes several jet changes guided by reading the spark plugs. Here's a quick step by step showing how that process works.
#SlantSix #Enginetuning #Dragracing
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All Comments (21)
  • @beastlydookie81
    When i’m tired of working on my old piece of shit, i watch other people work on their old pieces of shit. Thank you tony
  • Decades of fighting Chevy v. Ford. Listening to a smart Mopar man could have saved me years. Go Uncle Tony!
  • @tpelton
    drains gas nicely into cap. proceeds to throw it onto floor. i love old school wrenching.
  • @johnwilburn
    We're watching Tony work! I've stepped back from the screen just to be safe.
  • UT Translation: "So, when it was nice and quiet this morning, I fixed that by tearing up some asphalt."
  • @Sedan57Chevy
    For hating working in front of the camera, you did a great job of making an easily digestible informative video.
  • Now that Derek with VGG has moved to your neck of the woods, I look forward to some collabs coming up in the future.
  • @ben68442
    uncle tony should be the last image in the "evolution of man chart" standing there with a slant six under his arm
  • @moparedtn
    Simple Craftsman hand tools, simple logic applied, simple engine to work on. The "technique" is simple as well; his hands move almost identically to what mine do to this day. Those hands are seriously seasoned. Pure "Point A" to "Point B" wrenching, no flash, no textbook sanitary - just exactly what is needed to do the job, nothing more - and tempered, oh so very tempered, at every step by years of experience in knowing what could go wrong if done differently at any point. It's a pleasure to watch Tony's videos again. I like this course of content creation and think it does the hobby a world of good that it gets put out there. This is the stuff young skulls full of mush need to learn so that the hobby survives. Good on ya, Tony. - Ed on the Ridge
  • @mongomay1
    Thanks Tony, You are doing much better sharing your brain lately and I thank you for the mad scientist hot rodder you are for us regular folks.
  • Back in the days before blue gaskets, I read to use chapstick on them before assembly. I did. It worked.
  • I said this before….and i’ll say it agian…. “ i totally dig the white engine bay and underside of hood” looks soo clean and bright. 😎
  • @coleenteabo7033
    "QUICKIE"? Nice to see a video longer than 10 minutes. I don't care what YouTube says. When the Gearhead Monk speaks we listen! The longer the better in my opinion.
  • @428eliminator3
    I remember when "Stagger Jetting" was a headliner on one of the car magazines. Big voodoo technology back then haha
  • Those slant sixes are surprising for it's small displacement, my mom had one in a volary station wagon and when I first drove it I thought it was a 318 I was quite surprised when I went to check the oil and saw the leaning tower of power!
  • @seanbryant2848
    Generally I love my Fords; I have Fords, but there's something just so sweet about a slant six, and the sound of a Chrysler starter motor from this era... so sweet...
  • The Mopar Bible specifies popsicle stick air dams inside the intake for fuel distribution problems like this. A flexible fuel line allows the bowls to be removed without removing the fuel lines. It costs about 20 dollars more. You can slice an all metal line and put some flex hose in the middle. The Roadkill guys have a good video on carb tuning with an Air Fuel Gauge, though it is meant for a street car.
  • @notthegovnkemp
    I wish your channel was around 15 years ago. I wasted tens of thousands of dollars on my old charger and hardly got anywhere. I could never find a mechanic like you that knew what he was doing.