ROCHESTER Carburetors: Adjustment: Notes

If initial adjustment required to warm up engine, set each idle mixture screw as follows: 2 turns out (1968 Buick, Chevrolet, Oldsmobile), 4 turns out (1968 Cadillac), 6 turns out (1968 Pontiac, Tempest, Firebird), 1 1/2 turns out (1969 Cadillac), 2 turns out (1969 Buick & Oldsmobile), 3 turns out (1969 Chevrolet), 5 turns out (1969 Pontiac, Tempest, Firebird), from a lightly seated position.