okay i am wondering what i need to do.I have a few gm one wires laying around and i know to run a 8 gauge wire to the battery.The question i have theres two tabs f and r which wire do i use to run to my igntion switch also can i run that wire to my postive side of the coil. Instead of the switch also i have heard people say i need to get a diode other the alternator will drain my battery. Is there one off a car i can rob or should i get one from a parts store thanks alot. the motor is a 1972 440 with mopar performance electronic igntion 4 speed