Pertonix Flame Thrower Digital Rev Limiters work with most even fire 4, 6, or 8 cylinder engines using points, OEM electronic (GM HEI, Ford, Chrysler) and aftermarket inductive type ignition systems, including Pertronix Ignitor and Ignitor II points replacement systems.

This digital microcontroller based unit provides greater accuracy (+/- 0.01%) over analog systems. There is no need for old resistor style pills or chips. Easy to use rotary switches adjust RPM limit to an ultra-fine resolution of 100 RPM's. Multiple analog filters and one digital filter prevent coil noise interference
from affecting the established rev limit.