The MSD Soft Touch Rev Control, PN 8728, is designed for inductive style ignition systems. It cannot be used with an MSD CD Ignition such as any 6 or 7 Series Ignition Control.
The Rev Limit is set with plug-in rpm modules. When the rpm reaches the specified limit, the Control will randomly drop the spark to the cylinders to keep the rpm at the limit. If no module is installed, there will be no rev limit.
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