MSD RPM Activated Switch - 4 Cylinder H753C3054 This is a must for

This is a must for circle track or forced induction engines

GM V8 VortecProduct Description:

durability and valve train stability

pure silicone

A-Pillar / Door / Main / Rear Struts

MSD RPM Activated Switch - 4 Cylinder H753C3054 This is a must forThese RPM Activated Switches will perform a variety of different functions from turning on a bulb or solenoid to activating an MSD Timing Control at a desired rpm. The RPM Activated Switch, PN 8950, has two activation wires; one to ground a circuit and the other to open a circuit. Simply plug in an rpm module and wire the Switch to the circuit you want to activate. When the engine rpm reaches that amount, the circuit is activated and will remain on