1/2" Phenolic Plastic Carb Spacer Holley 4150 Carburetor Open Center Style

Fits 4 barrel carbs with a square bore base like the Holley 4150/4160, Barry Grant, Carter and Edelbrock that are used on many Small/Big Block Chevy, Ford and Chrysler Mopar engines.

• Carb spacers extend the length of the intake mixture column, which improves air/fuel distribution.
• As a general rule, the open design spacers increase plenum volume for improved high rpm power, while 4-hole designs increase mixture velocity for improved low-speed and mid-range torque.
• The phenolic plastic style carb spacer also insulates your carb from excessive engine heat.
• Reducing fuel temperature inside the carburetor results in a denser, more powerful fuel charge to the manifold.

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