In
a previous story, we installed newexhaust tubing from Accurate
Exhaust Products, which improvedthe performance of our 1967 273 Dodge
Dart GT. With a free-flowing exhaust, wefelt there was more horsepower to be
found on the intake side of the engine.The factory Carter two-barrel (2-bbl)
carburetor seemed to be the limiting
point of getting the proper amount ofair and fuel into the engine. To improve
our situation, we contacted the officialsat Brawler about a four-barrel (4-bbl)
carburetor to replace the restrictive 2-bbl.Their suggestion was a Brawler 570-cfm
carburetor. The carb is a 4150 designwith vacuum secondaries, an electric
choke, and the housing is aluminum die-cast (PN BR-67252, MSRP $334.95).
Not familiar with Brawler SeriesCarburetors? Brawler is a new carburetor
offering from Holley. Brawlers areavailable in 570 to 770 cfm and offer
a vacuum or mechanical secondary tomeet the needs of almost every engine
and vehicle. Regardless of the carburetorselected, all the models include dual-inlet
float bowls with large sight-glass windowsto ease fuel-level adjustments, and each
carburetor comes with an electric choke.All the Brawler carburetors are machined
and assembled in the USA. While acost-effective carburetor, the Brawler line
comes with all the adjustments necessaryto tune the carburetor to meet the
performance needs of any enthusiast.While we waited on the delivery of the
Brawler carburetor, we secured an intakemanifold that would work with our stock,
small-port 273 cylinder heads. We pickedup an old Edelbrock LD4B dual-plane
manifold that was designed to work withthe 273/318 engines. This manifold is the
small-port version of the famous LD340manifold. Because the manifold had not
been on an engine in three decades, wegave it a good cleaning and applied a
fresh coat of Chrysler red engine paint.TECH
FUEL FOR THOUGHT
BY CHRIS HOLLEYMORE DODGE DART HORSEPOWER
WITH A BRAWLER CARBURETOR
24 moparmuscle.com