MSD Ultra 7AL Ignition 1977-chevrolet-c30-esi5714950 688 in H x 3

688 in H x 3 in D - Drivers Side Inlet - Passenger Side Outlet - Aluminum - Natural - GM A-Body / G-Body 1967-79 - Each

Slip Yoke - 27 Spline - 9 in Long - REM Finished - Steel - Natural - Jerico Transmission - Each

both manifolds have a 9

494 in - Duration 268 / 268 - 110 LSA - 1500 / 5500 RPM - Ford FE-Series - Kit

MSD Ultra 7AL Ignition 1977-chevrolet-c30-esi5714950 688 in H x 3For racers that need serious spark output, the new ULTRA 7AL is the right choice. Offering Industry Leading Spark Energy Output in a compact, and efficient package. The Ultra 7AL includes four step retards, three rev limits, and two RPM activated switch outputs. The ULTRA 7AL also features two different power output settings that can be used for on the fly changes which are perfect for drag and drive applications! All features are adjusted using plug