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 Performer 1in. Spacer Edelbrock #88143 Water Pump Big Block Chrysler 361-440?1958-79 Black Ideal To Prevent Overheating In Street Rods And Street Machines.
