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.
Comments about Edelbrock 4-Barrel Carburetor Spacers:
This spacer coems with the needed longer studs, lock washers, and nuts. But on line you cannot see or read that it does. Therefore I needlessely ordered studs seperately and will be returning them.
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