Moroso Mag Tune Spiral Core 8 mm Spark Plug Wire Set Black 90 Degree Plug Boots HEI Small Block Chevy 9762M 1101046 Features:CNC machined billet aluminum housing 24232706 Features:CNC machined billet aluminum housing and billet aluminum baseNo CARB Exemption Order NumberWill not accept a vacuum advance canisterMust be used with an MSD Ignition ControlSupplied with an HEI style distributor cap and rotor (accepts Cap A Dapts)Nylon pads ensure smooth operation of the advance weightsAdvance weight pins are staked and tig welded to the plateMechanical advance assembly can be locked out for crank trigger systemsAdvance plate and weights are fine blanked from chrome moly steel and QPQ coated for friction reductionPolished steel shaft is QPQ coated and guided by a sealed ball bearingMaintenance free magnetic pickup and precision reluctor create stable trigger signals throughout the rpm rangeEasy to adjust mechanical advance with supplied springs and stop bushings ORB 12 female outlet port Spiral Core chassis and suspension equipment and numerous other performance parts