D.U.I. Distributor (w/ Vacuum Advance) Performance Distributors one-piece ignition system, D.U.I. are three letters you cannot do without! The D.U.I. (Davis Unified Ignition) allows you to Drive Under the Influence of more power. The newest addition to...

D.U.I. Distributor (w/o Vacuum Advance) This is a true race distributor with an upgraded coil, different cams inside the housing as well as different weights and springs. Performance Distributors one-piece ignition system, D.U.I. are three letters...

D.U.I. Short Version Distributor (w/ Vacuum Advance) Performance Distributors one-piece ignition system, D.U.I. are three letters you cannot do without! The D.U.I. (Davis Unified Ignition) allows you to Drive Under the Influence of more power. The...

D.U.I. Short Version Distributor (w/o Vacuum Advance) This is a true race distributor with an upgraded coil, different cams inside the housing as well as different weights and springs. For racing applications only. Performance Distributors one-piece...