Pro HEI RPM Replacement Ignition Module (Suits New HEI 6000 Series) stainless steel alloy and are

stainless steel alloy and are carefully designed to increase gas flow for more power

Available for small and large housing ends commonly found in all of the popular Ford 9"âÃú rear ends

and feature low-resistance terminals to maximize conductivity

The Speedmaster high mount serpentine kit for Chevy LS engines

Pro HEI RPM Replacement Ignition Module (Suits New HEI 6000 Series) stainless steel alloy and areSpeedmaster offers budget pricing and big performance with their ignition controller modules. The modules improve performance with multiple spark, more spark, and ensured combustion for a cleaner burn to set the streets on fire. Speedmaster ignition modules will show you the benefits of greater throttle response, smoother idle, and full power output at high rpm. Fire your engine for less with Speedmaster ignition controller modules.