This HEI remote mount Super Coil is engineered with optimized low resistance high turns ratio windings around a M36 high silicone magnetic steel E-core for higher energy and voltage outputs. Results in quicker starts improved idle quality crisper th rottle response and more high RPM power.Compatible with late model GM computer controlled remote mount HEI systems. Direct bolt-in plug-in replacement. Can also work with an ACCEL Mallory Crane Holley or MSD capacitive discharge ignition sy stem.Special high temperature epoxy resists shock and vibration while increasing thermal conductivity. Brass coil wire contact increases energy transfer and resists corrosion better than aluminum. Comes with new mounting hardware. High dielect ric strength ACCEL Yellow over molded housing