HOW TO TUNE A HOLLEY CARBURETOR! I’m Testing It On My Low-Buck Duster
David Freiburger
@thedavidfreiburgerAbout
Gearhead adventures, car rescues, builds, tech, horsepower, history, Americana! I'm the former TV host of Roadkill, Roadkill Garage, Engine Masters, and more. I used to be the Editor In Chief of the magazines HOT ROD, HOT ROD Deluxe, Car Craft, Rod & Custom, and 4-Wheel & Off-Road. I host the Duct Tape Drags each year. Member of six 200 MPH Clubs. Horsepower junkie. Jeep guy.
Video Description
Learn how to tune a Holley type four-barrel carburetor, and see deep inside how they work, as I supertune my Red Duster for better road manners! I’ll take you inside the idle circuit, transfer slots, power valves, jetting, and accelerator pump tuning. I’ll show you how venturi size interacts with jet size. I’m doing it all with a 750 Brawler double pumper on my 360 Mopar. Moat of the tips here apply to 4160 and 4150 carburetors from Holley, Brawler, Demon, QFT, FST, and Proform. After I was done, I realized that I forgot to show you how accelerator pump cams work. Oh well! That’ll be a tip for next time. Thanks for watching.—D/F DUCT TAPE DRAGS IS OCTOBER 17-18, 2025, at TUCSON DRAGWAY! Get tickets here: https://tickets.thefoat.com/DuctTapeDrags/event-246868/clear_cart-1 GET YOUR D/F MERCH HERE: https://shop.davidfreiburger.com/ FOLLOW ME FOR ADVENTURES, HISTORY, HORSEPOWER, PROJECT CARS, AND MORE! https://www.instagram.com/davidfreiburger/ https://www.facebook.com/DavidFreiburger https://www.threads.net/@davidfreiburger EMAIL: [email protected]
Tune Up Your Carb Essentials
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