Ready-To-Run Distributor Buick Nailhead V8 Buick 322/364/401/425 Nailhead Built-In Module Includes Iron Gear Rev Limiter MSD IgnitionMSD's Ready to Run Distributor incorporates a magnetic pickup that never wears out! Plus, the distributor has a built in ignition module so there is no need to mount an external MSD Ignition Control and no MSD Ignition control is required. Not only do you get the benefits of electronic triggering, but your engine will awaken with the powerful sparks from the ignition module. This module delivers up to 7. 5 amps to the coil creating a stout inductive