Maybe, but "common knowledge" is often wrong. See here for info on how the mythical "4500 rpm HEI limit" probably dawned. There are dozens of different HEI modules available with different performance characteristics. If you're revving higher than a plain old ordinary junkyard stock module will take you, it's easy and cheap to buy a high-zoot module from Mallory, MSD, Accel, or half a dozen other outfits. Every ignition system will have an RPM limitation imposed by one or another component.
