Fits Under Factory Shield! Easy Performance Ignition Upgrade. New Electronic Pro Billet Ignition Distributor w/mechanical TACH DRIVE cable connection for 1962-1974 Chevrolet Corvette Oem Fit D8572-D Brand: Dragon Fire Condition: New Simple Hook up, external 12 volt coil required. Mechanical Tach-Drive hook-up to run your stock tachometer. Adjustable vacuum canister bronze bushing corrosion resistant shaft heavy duty drive gear brass terminals precision advance weights.