Can I use my original headlight switch or ignition switch with your Classic Update Series kits?

It is not recommended that original switches be used in any of our kits. In many instances, the method of connection is completely different, as the switches that we include are updated-style units. The amperage ratings on our switches are usually higher than stock so that they will carry the extra load capabilities of the updated harnesses. In addition, our ignition switches are mutually bussed between crank and run (whereas most originals are not) so that updated items such as HEI, MSD, fuel injection, and single wire “high torque” starters can be used.