BlackBox 3 Programmable distributor advance, rev-limiter, vacuum, boost Ignition

Stealth Blackbox with added MultiSpark™ ignition. Programmable Rev limiter adjust limit from 2000 - 9500 RPM. Programmable Rev Limiter type 5 settings from hard to soft cut. Programmable Vacuum advance: Program a Vacuum advance on a none Vacuum distributor.