Digital Soft Touch Rev LimiterFor HEI IgnitionWith Tach Readout Features:Fully digital operation allows for accurate rev limitingRotary dials eliminate the need for plug in RPM modulesEasy installation to any HEI distributor with plug-in wiring and connectorsEpoxy filled for extreme racing conditions and eliminates tampering with circuitryPlugs into nearly any HEI DistributorAdjustable Rev Limit from 3000-9900 RPMRecords highest rpm reached during race