Use open spacers where more plenum volume or more carb-to-plenum floor distance is required. 4-hole spacers enhance low-rpm torque and throttle response and dampen reversion effects on the carb. The superior heat insulating properties of wood fiber laminate are ideal for reducing heat transfer to the carb.
Edelbrock 1in. 4500 Carb Spacer
Edelbrock #8816 Water Pump SBC Competition -8 Outlet Holes Designed For Circle Track And Endurance Racing Applications.
