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. Cloverleaf Carb Spcr
Edelbrock #8817 Water Pump SBC Competition 3/8 NPT Outlet Holes Designed For Circle Track And Endurance Racing Applications.
