Since its inception
Ford: F-250 Super Duty 20-22
1959-1975 Chevrolet El Camino
The Pro-Flo XT 289/302 EFI intake manifold has a large plenum and long tapered runners to deliver maximum horsepower and broad torque band throughout the rpm range
1987-1993 Chevrolet Blazer
Edelbrock Carburetor Spacer - 1/2 Thick - Wood H76203FXS Since its inceptionUse 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. 8725, Edelbrock, Spacer, adapter, Carb adapter, Carburetor adapter, standard flange, square Bore. 4 barrel, divided wall, divided, dual plane,