This is a heavy duty single replacement breaker point set for high RPM engine applications. What makes this a heavy duty set is a higher tension spring arm which allows greater stabilty at higher RPM ranges. If your engine operates regularly at speeds above 6,000 RPM this is the point set you need, but keep in mind that the higher spring tensions increase the wear upon the point cam. If you do not have a high RPM engine application you should stick with the standard tension point set, part #
MAL-102M.
