Each kit is within a 1,000 rpm range. For example, the PN 8745 is supplied with: 5,000, 5,200, 5,400, 5,600, 5,800 modules.
MSD 87431 3000 Series Module Kit, Odd Increments
MSD 8743 3000 Series Module Kit, Even Increments
MSD 87431 Ignition RPM Modules 3100 to 3900 rpm Set of 5
Engine RPM Limiter MSD 87431
