Concours correct Autolite spark plug wires for any 1968 Mercury Cougar or Ford Mustang with 390-2V, 390-4V, or 428CJ engines without thermactor smog systems. Black wires with 'Autolite', 'radio resistance', cylinder numbers individually imprinted, and dated 2Q67 (second quarter 1967) on the 7mm wires. Black spark plug boots on this set, but with a orange boot for the number 6 plug wire. This was by plan, for a purposely crossed wire in the spark plug holder.
Export cars generally did not have smog for 1968.