Holley Brawler Double-Pumper Carburetor Installation and Basic Tuning

Holley Brawler Diecast Carburetor

These days, the talk seems to be all about EFI and fuel injection retrofit kits. Dalton at Pole Barn Garage wonders where all the love is classic double pumpers?

Dalton demonstrates just how simple and easy a carburetor can make your life — bolt one on, make a few connections and simple adjustments, and you immediately get excellent throttle response and performance.

Marvel at the beauty of a carburetor in its natural habitat — onboard a large displacement American V8, this one under the hood of the Holey Goat 1970 Pontiac GTO.

Holley Brawler Installation and Basic Tuning

Here’s a quick “how-to” that covers installing a new Holley Brawler double-pumper carburetor. The full Installation Instructions appear below.

Tech Note: This model of carburetor has the square bore flange bolt pattern. It can replace Holley, Edelbrock, Carter AFB, and Autolite style carburetors with 5 3/16″ x 5 5/8″ bolt pattern. If you have a spreadbore style intake manifold, you will need an adapter to install this carburetor. Similar to the Mr. Gasket #1932.

About Holley Brawler Double-Pumper Carburetors

Brawler diecast carburetors are machined and assembled by craftsmen right here in the USA. These carburetors work hard just as their name implies — just raw bare knuckled performance that you can rely on.

Don’t let the budget-friendly price fool you, the Brawler development focused on the performance you want and not the pretty box that it comes in. Brawlers come with the latest technology in air/fuel calibrations for today’s street engine demands.

The Brawler family of diecast carburetors are all made from lightweight diecast aluminum components and are available in both vacuum and mechanical secondary models. They offer all the tunability and options that you would find from more expensive carburetors in the market, including a beautiful appearance, electric choke, and four-corner idle adjustment on all mechanical secondary models.


  • Available sizes from 570 to 770 CFM to match your needs.
  • Available in both vacuum and mechanical secondary versions to meet your needs
  • All models have dual inlet fuel bowls with sight glass windows for safe and easy float adjustments
  • All models come with an electric choke for easy starting in colder climates

Find the right Holley Brawler Carburetor For You

See all of the Brawler Carburetor offerings available from Holey

Full Installation Instructions