7HO-181 fits 8 cylinder IHC Trucks 1972-1981. 12v negative ground. Holley Gold Box distributors have never before been known for their performance or reliability...until now. The Ignitor III fits entirely within the distributor and triggers off the reluctor.
Ignition box performance without the box. The Ignitor III is our most advanced points replacement kit yet. It is literally an ignition box inside your distributor. It features multiple sparks throughout the entire RPM range and a high resolution REV limiter accurate to +/- 50 RPM which is set by the user. The Ignitor III module generates 5 times more spark than points. This of course means more spark energy creating more horsepower and better mileage.