I have a complete MSD Crank Trigger Racing Lawnmower Ignition set up. This includes an Autometer Motorcycle Tach, and a reprogrammed MSD 6AL Ignition amplifier. This ignition will power the engine to above 9,000 rpm limit of tachometer. Price is $300 includes Free Shipping for the following: MSD 6AL box MSD Crank Trigger Sensor, MSD Ignition Coil, Autometer Tach.