Strange Engineering - Aluminum Ultra Support Cover - GM 12-Bolt 083 in ID - Brass

083 in ID - Brass - Edelbrock Carburetors - Pair

Air Cleaner Assembly - Deluxe - 10 in Round - 2 in Element - 5-1/8 and 4-7/32 in Carb Flange - Dropped Base - Steel - Chrome - Kit

Cap and Rotor Kit - HEI Style Terminal - Brass Terminals - Clamp Down - Gray - Vented - Ford V8 - Kit

Carburetor Spacer - 1 in Thick - 4 Hole - Holley 4-Barrel - Gaskets / Hardware Included - Phenolic - Black - Each

but there is also an adjustable boost/timing retard circuit to prevent detonation

Strange Engineering - Aluminum Ultra Support Cover - GM 12-Bolt 083 in ID - BrassDifferential Cover Ultimate Support Hardware Included Aluminum Natural GM 12 Bolt Each