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 8749 9000 Series Module Kit, Even Increments
MSD Ignition 87491 Module Kit, 9000 Series Odd Increments
Engine RPM Limiter MSD 8749
