Dan,


The ballast is a weak link in the system, you could wire your Petronix to work with the factory ballast, but the voltage output will be dimished, just like factory, the Flame Thrower coils have an internal ballast built in, but it's a true 12 V system to the HallCell,...keeping the factory ballast will drop the voltage down to 9 volts on the HallCell, dimishing performannce, to eliminate the ballast you can simply just connect the two ballast wire bayonets together with a double ended stak-on, or if you want to retain a "factory" look by retaing the ballast on the firewall, just "dummy up" the ballast by soldering a #10 wire inside the back of the ballast,this way you complete the circut, but now have 12 volts, rather than 9 to the HallCell,.... but remember to gut the ballast's resistive coil winding inside, just solder the wire to the terminal ends,....the Petronix kit gives you 2 choices in wiring,...but IMHO I feel you'll get the best optimized system by eliminating the ballast's function from the system, and having a TRUE 12V system,....it's a very noticable performance and reliability increase that you'll see when converted properly

Mike