PROFORM’s affordable Carb Spacer Kit (PN 67160C) allows you to make almost instant adjustments, optimizing your air/fuel flow rates, even in the pits. This Trackside Carb Spacer Kit includes a 1-inch thick frame and a choice of three inserts: open, standard four-hole and tapered four-hole. These lightweight phenolic spacers are heat resistant, providing minimal thermal transfer, and fighting vapor lock problems as well. The three inserts offer an easy, flexible way to tune your powerband.

The four-hole spacers accelerate airflow to improve low-end torque, while the open insert creates a high-rise manifold effect, increasing plenum volume and moving the throttle blades away from the roof of the manifold runners. This improves air/fuel distribution and flow, adding mid-range and top-end power. These PROFORM spacers fit Holley 4150-style carburetors and PROFORM Race Series carbs.

For complete information, or to request a catalog of their engine parts and tools, contact PROFORM at www.proformparts.com 

PROFORM’s affordable Carb Spacer Kit (PN 67160C) allows you to make almost instant adjustments, optimizing your air/fuel flow rates, even in the pits. This Trackside Carb Spacer Kit includes a 1-inch thick frame and a choice of three inserts: open, standard four-hole and tapered four-hole. These lightweight phenolic spacers are heat resistant, providing minimal thermal transfer, and fighting vapor lock problems as well. The three inserts offer an easy, flexible way to tune your powerband.

The four-hole spacers accelerate airflow to improve low-end torque, while the open insert creates a high-rise manifold effect, increasing plenum volume and moving the throttle blades away from the roof of the manifold runners. This improves air/fuel distribution and flow, adding mid-range and top-end power. These PROFORM spacers fit Holley 4150-style carburetors and PROFORM Race Series carbs.

For complete information, or to request a catalog of their engine parts and tools, contact PROFORM at www.proformparts.com