Performance Carburetor 600CFM 4175 Series

The Performance Carburetor 600CFM 4175 Series by Holley is designed for automotive enthusiasts and mechanics who require dependable fuel delivery and responsive throttle control in street and mild performance applications. This 4-barrel carburetor serves as a drop-in upgrade for classic vehicles, muscle cars, and hot rods, providing improved consistency and tunability over factory carburetors.

With a flow rate of 600 CFM (cubic feet per minute), this carburetor strikes a balance between everyday drivability and responsive acceleration, making it suitable for naturally aspirated engines. The 4175 design features a mechanical secondary system that opens progressively under load, enhancing fuel atomization and reducing the risk of rich stumbles that are common in older carburetors. Constructed from cast aluminum, it is both lightweight and durable, with a compact footprint that fits well in engine bays with limited space.

The 600 CFM 4175 Series is particularly favored by mechanics and restorers for mid-range builds, where off-the-shelf solutions may not meet specific performance needs. Its precise metering and adjustability allow for fine-tuning to match various induction systems, whether paired with stock or performance intake manifolds. This carburetor is compatible with small-block and mid-size engines ranging from 262 to 400 cubic inches, making it a versatile choice for a variety of applications.